TF 209-R-08

Design Aids For Structural Welded Wire Reinforcement (includes WWR/Rebar Comparison Tables) INTRODUCTION

SPECIFICATIONS

This Tech Fact* provides basic information on coldworked wire and welded wire reinforcement (WWR) to assist in the design and detailing of WWR systems for concrete structures. Tables are included to compare steel areas for reinforcement with a minimum yield strength of 60,000 psi and three higher minimum yield strengths, i.e., 70,000, 75,000 and 80,000 psi, for WWR. Tables 3-6 consider steel wire sizes ranging from W1.4 (1/8”φ to W or D 45 (3/4”φ).

The American Society for Testing and Materials (ASTM) publishes specifications for the wire used to manufacture reinforcement and for both plain and deformed WWR. The Canadian Standards (CSA) are withdrawn and replaced with applicable ASTM standards for use in Canada. The appropriate titles and numbers are given in Table 1. These are considered to be the governing specifications for both wire and WWR. Federal, State and local governmental agencies have special specifications that will control. The AASHTO specification numbers are a prime example of this. They are also stated in Table 1. Table 2 has minimum strength properties and weld shear test values. See the section on Minimum Yield Strengths for specific references to high strength reinforcement.

The American Concrete Institute’s (ACI) publication ACI 318, Building Requirements for Structural Concrete defines deformed reinforcement for structural concrete in Section 2.2. The section states that welded plain wire reinforcement, welded deformed wire reinforcement and deformed wire are defined as deformed reinforcement. For further definition and acceptance for the use of high strength reinforcement see ACI 318, Chapter 3.

TABLE 1 SPECIFICATIONS COVERING WELDED WIRE REINFORCEMENT U.S. Specifications ASTM A 82

AASHTO Specifications M32

ASTM A 185

M55

Steel Welded Wire Reinforcement, Plain, for Concrete

ASTM A 496

M225

Steel Wire, Deformed, for Concrete Reinforcement

ASTM A 497

M221

Steel Welded Wire Reinforcement, Deformed, for Concrete

Title Steel Wire, Plain, for Concrete Reinforcement

TABLE 2 ASTM PROPERTIES OF STEEL WIRE IN WELDED WIRE REINFORCEMENT Type of WWR Welded Wire Reinforcement, Plain Welded Wire Reinforcement, Deformed

Minimum Tensile Strength MPa psi 520 75,000 550 80,000

Minimum Yield Strength MPa psi 450 65,000 485 70,000

Weld Shear MPa psi 241 35,000 241 35,000

*This Tech Fact may be inserted in the WRI Structural Detailing Manual, Section 2 and will be updated as manufacturing capabilities are changed.

© Wire Reinforcement Institute, Inc. 2008

Page 2 • TF 209-R-08

MINIMUM YIELD STRENGTHS The yield strength values shown in Table 2 are ASTM requirements for minimum yield strengths measured at a strain of 0.5% of gage length. The ACI 318 Structural Building Code, Chapter 3, states that yield strength values greater than 60,000 psi to 80,000 psi may be used, provided they are measured at a strain of 0.35% of gage length. The ACI strain requirements are now covered in supplements specified by ASTM. Also, the ACI 318 Building Code limits the minimum design yield strength of reinforcement to 80,000 psi (Chapter 9, 9.4), (Chapter 11, 11.4.2).

WELD SHEAR STRENGTH AND CONCRETE BOND Plain WWR develops bond with the concrete through the positive mechanical anchorage at each welded intersection of wires. Deformed WWR utilizes wire deformations along with the welded intersections for bond and anchorage. The ASTM requirements for weld shear strength at the wire intersections are shown in Table 2. ASTM specifies a size differential for wires being welded together to assure adequate weld shear strength. For welded wire reinforcement, plain and deformed, the smaller wire must have an area of 40 percent or more of the area of the larger wire.

EXAMPLE: (Showing Use of Comparison Tables 3-6) Select the styles of WWR with minimum yield strength, fy = 80,000 psi to be used in lieu of fy = 60,000 psi (Grade 60) reinforcing bars. The slab is for a one-way slab, 6 inches thick. The positive moment reinforcement is #4 bars @ 10” c/c. (As = .24 in2) The temperature reinforcement is #4 bars @ 18” c/c. (As = .133 in2) The negative moment reinforcement is #5 bars @ 12” c/c. (As = .31 in2) Use Table 6 - Reinforcing Bar: fy = 60,000 psi, Welded Wire Reinforcement: fy = 80,000 psi Begin with 6 in. by 6 in. WWR spacing and adjust as necessary.

POSITIVE MOMENT REINFORCEMENT #4 bars @ 10 in. c.c. - select W9 wire @ 6 in. As = .20 x 12 x 60  2 = 0.09 in2 10 80

TEMPERATURE REINFORCEMENT #4 bars @ 18 in. c.c. - select W5 wire @ 6 in. As = .20 x 12 x 60  2 = 0.05 in2 18 80

Since W5 wire is greater than 40% of W9 wire, the minimum wire size requirement by ASTM is satisfied. Reviewing Table 6 (WWR with fy =80,000 psi) check the amount of temperature reinforcement required, compared to #4 @ 18” (fy =60,000 psi). For a 6 inch slab, W5 wire @ 6 in. furnishes the desired steel area. The WWR style for the bottom reinforcement (positive moment) is then: 6 x 6 - W9 x W5.

NEGATIVE MOMENT REINFORCEMENT

#5 bars @ 12 in. c.c. - select W11.6 wire @ 6 in.

REMARKS:

As = .31 x 60  2 = .116 in2 80

When the WWR style is required to furnish tension reinforcement in only one direction, the cross-wire should be the smallest size permitted at the maximum spacing permitted. ASTM specifies the minimum size as noted above. The maximum spacing is 3 times the slab thickness or 18” as specified in ACI 318, Chapter 7. Cross-wire: 40% of W11.6 = W5 wire @ 12 in. (ASTM A185, Chapter 7). Use W5 wire @ 12 in. for efficiency, since it is the same size used in the positive moment reinforcement. The WWR style for the top reinforcement (negative moment) is then: 6 x 12 - W11.6 x W5.

NOTES FOR TABLES 3-6

1. Weights per 100 square feet are for one direction only. Double the weight for the same reinforcing in the other direction, or add the appropriate weight for a different pattern in the other direction. 2. Weights per 100 square feet are theoretical and are intended for estimating purposes only. Contact the WWR producers for more specific project requirements. 3. W (plain) or D (deformed) are used as prefixes for wire sizes (ex: W8, D10). ACI 318 requires the minimum D-deformed wire to be D4 for structural applications. Sheets of WWR can be both D and W mixed. (ACI 318, Chapter 12, 12.7.4). 4. In accordance with ACI 318, the maximum spacing permitted for plain WWR (W) is 12 inches, and the maximum spacing for deformed welded wire reinforcement (D) is 16 inches. The 18-inch spacing in the tables is only recommended for use in slab on grade applications, which are not governed by ACI 318. WRI provides the material herein as a matter of information and therefore, disclaims any and all responsibility for application of the stated principles or the accuracy of the data other than material developed by the institute.

Page 3 • TF 209-R-08

2 4 6TABLE 38 - #3, #4, 10 #5 12 14 16 18 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 60,000 psi

Bars #3 @ 4" #3 @ 5" #3 @ 6" #3 @ 7" #3 @ 8" #3 @ 9" #3 @ 10" #3 @ 11" #3 @ 12" #3 @ 13" #3 @ 14" #3 @ 15" #3 @ 16" #3 @ 17" #3 @ 18"

AS / LF in2 0.330 0.264 0.220 0.189 0.165 0.147 0.132 0.120 0.110 0.102 0.094 0.088 0.083 0.078 0.073

Rebar #/CSF 113 90 75 64 56 50 45 41 38 35 32 30 28 27 25

Bars #4 @ 4" #4 @ 5" #4 @ 6" #4 @ 7" #4 @ 8" #4 @ 9" #4 @ 10" #4 @ 11" #4 @ 12" #4 @ 13" #4 @ 14" #4 @ 15" #4 @ 16" #4 @ 17" #4 @ 18"

AS / LF in2 0.600 0.480 0.400 0.343 0.300 0.267 0.240 0.218 0.200 0.185 0.171 0.160 0.150 0.141 0.133

Rebar #/CSF 200 160 134 114 100 89 80 73 67 62 57 53 50 47 45

2 in. 10.0 8.0 6.7 5.7 5.0 4.4 4.0 3.6 3.3 3.1 2.9 2.7 2.5 2.4 2.2

Bars #5 @ 4" #5 @ 5" #5 @ 6" #5 @ 7" #5 @ 8" #5 @ 9" #5 @ 10" #5 @ 11" #5 @ 12" #5 @ 13" #5 @ 14" #5 @ 15" #5 @ 16" #5 @ 17" #5 @ 18"

AS / LF in2 0.930 0.744 0.620 0.531 0.465 0.413 0.372 0.338 0.310 0.286 0.266 0.248 0.233 0.219 0.207

Rebar #/CSF 313 250 209 179 156 139 125 114 104 96 89 83 78 74 70

2 in. 15.5 12.4 10.3 8.9 7.8 6.9 6.2 5.6 5.2 4.8 4.4 4.1 3.9 3.6 3.4

2 in. 5.5 4.4 3.7 3.1 2.8 2.4 2.2 2.0 1.8 1.7 1.6 1.5 1.4 1.3 1.2

6 in. 16.5 13.2 11.0 9.4 8.3 7.3 6.6 6.0 5.5 5.1 4.7 4.4 4.1 3.9 3.7

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 22.0 27.5 33.0 17.6 22.0 26.4 14.7 18.3 22.0 12.6 15.7 18.9 11.0 13.8 16.5 9.8 12.2 14.7 8.8 11.0 13.2 8.0 10.0 12.0 7.3 9.2 11.0 6.8 8.5 10.2 6.3 7.9 9.4 5.9 7.3 8.8 5.5 6.9 8.3 5.2 6.5 7.8 4.9 6.1 7.3

4 in. 20.0 16.0 13.3 11.4 10.0 8.9 8.0 7.3 6.7 6.2 5.7 5.3 5.0 4.7 4.4

6 in. 30.0 24.0 20.0 17.1 15.0 13.3 12.0 10.9 10.0 9.2 8.6 8.0 7.5 7.1 6.7

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 40.0 32.0 40.0 26.7 33.3 40.0 22.9 28.6 34.3 20.0 25.0 30.0 17.8 22.2 26.7 16.0 20.0 24.0 14.5 18.2 21.8 13.3 16.7 20.0 12.3 15.4 18.5 11.4 14.3 17.1 10.7 13.3 16.0 10.0 12.5 15.0 9.4 11.8 14.1 8.9 11.1 13.3

14 in. 40.0 35.0 31.1 28.0 25.5 23.3 21.5 20.0 18.7 17.5 16.5 15.6

4 in. 31.0 24.8 20.7 17.7 15.5 13.8 12.4 11.3 10.3 9.5 8.9 8.3 7.8 7.3 6.9

6 in. 37.2 31.0 26.6 23.3 20.7 18.6 16.9 15.5 14.3 13.3 12.4 11.6 10.9 10.3

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 41.3 35.4 44.3 31.0 38.8 27.6 34.4 41.3 24.8 31.0 37.2 22.5 28.2 33.8 20.7 25.8 31.0 19.1 23.9 28.6 17.7 22.1 26.6 16.5 20.7 24.8 15.5 19.4 23.3 14.6 18.2 21.9 13.8 17.2 20.7

14 in. 43.4 39.5 36.2 33.4 31.0 28.9 27.1 25.5 24.1

4 in. 11.0 8.8 7.3 6.3 5.5 4.9 4.4 4.0 3.7 3.4 3.1 2.9 2.8 2.6 2.4

14 in. 38.5 30.8 25.7 22.0 19.3 17.1 15.4 14.0 12.8 11.8 11.0 10.3 9.6 9.1 8.6

18 in. 39.6 33.0 28.3 24.8 22.0 19.8 18.0 16.5 15.2 14.1 13.2 12.4 11.6 11.0

WWR As/ LF 0.330 0.264 0.220 0.189 0.165 0.147 0.132 0.120 0.110 0.102 0.094 0.088 0.083 0.078 0.073

WWR #/CSF 113 90 75 64 56 50 45 41 38 35 32 30 28 27 25

16 in. 45.7 40.0 35.6 32.0 29.1 26.7 24.6 22.9 21.3 20.0 18.8 17.8

18 in. 45.0 40.0 36.0 32.7 30.0 27.7 25.7 24.0 22.5 21.2 20.0

WWR As/ LF 0.600 0.480 0.400 0.343 0.300 0.267 0.240 0.218 0.200 0.185 0.171 0.160 0.150 0.141 0.133

WWR #/CSF 200 160 134 114 100 89 80 73 67 62 57 53 50 47 45

16 in. 45.1 41.3 38.2 35.4 33.1 31.0 29.2 27.6

18 in. 42.9 39.9 37.2 34.9 32.8 31.0

WWR As/ LF 0.930 0.744 0.620 0.531 0.465 0.413 0.372 0.338 0.310 0.286 0.266 0.248 0.233 0.219 0.207

WWR #/CSF 313 250 209 179 156 139 125 114 104 96 89 83 78 74 70

16 in. 44.0 35.2 29.3 25.1 22.0 19.6 17.6 16.0 14.7 13.5 12.6 11.7 11.0 10.3 9.8

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page 4 • TF 209-R-08

TABLE 3 - #6, #7, #8 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 60,000 psi

Bars #6 @ 4" #6 @ 5" #6 @ 6" #6 @ 7" #6 @ 8" #6 @ 9" #6 @ 10" #6 @ 11" #6 @ 12" #6 @ 13" #6 @ 14" #6 @ 15" #6 @ 16" #6 @ 17" #6 @ 18"

AS / LF in2 1.320 1.056 0.880 0.754 0.660 0.587 0.528 0.480 0.440 0.406 0.377 0.352 0.330 0.311 0.293

Rebar #/CSF 451 360 300 257 225 200 180 164 150 139 129 120 113 106 100

Bars #7 @ 4" #7 @ 5" #7 @ 6" #7 @ 7" #7 @ 8" #7 @ 9" #7 @ 10" #7 @ 11" #7 @ 12" #7 @ 13" #7 @ 14" #7 @ 15" #7 @ 16" #7 @ 17" #7 @ 18"

AS / LF in2 1.800 1.440 1.200 1.029 0.900 0.800 0.720 0.655 0.600 0.554 0.514 0.480 0.450 0.424 0.400

Rebar #/CSF 613 491 409 350 307 273 245 223 204 189 175 164 153 144 136

2 in. 30.0 24.0 20.0 17.1 15.0 13.3 12.0 10.9 10.0 9.2 8.6 8.0 7.5 7.1 6.7

Bars #8 @ 4" #8 @ 5" #8 @ 6" #8 @ 7" #8 @ 8" #8 @ 9" #8 @ 10" #8 @ 11" #8 @ 12" #8 @ 13" #8 @ 14" #8 @ 15" #8 @ 16" #8 @ 17" #8 @ 18"

AS / LF in2 2.370 1.896 1.580 1.354 1.185 1.053 0.948 0.862 0.790 0.729 0.677 0.632 0.593 0.558 0.527

Rebar #/CSF 801 641 534 458 401 356 320 291 267 246 229 214 200 188 178

2 in. 39.5 31.6 26.3 22.6 19.8 17.6 15.8 14.4 13.2 12.2 11.3 10.5 9.9 9.3 8.8

2 in. 22.0 17.6 14.7 12.6 11.0 9.8 8.8 8.0 7.3 6.8 6.3 5.9 5.5 5.2 4.9

6 in. 44.0 37.7 33.0 29.3 26.4 24.0 22.0 20.3 18.9 17.6 16.5 15.5 14.7

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 44.0 39.1 35.2 44.0 32.0 40.0 29.3 36.7 44.0 27.1 33.9 40.6 25.1 31.4 37.7 23.5 29.3 35.2 22.0 27.5 33.0 20.7 25.9 31.1 19.6 24.4 29.3

4 in. 40.0 34.3 30.0 26.7 24.0 21.8 20.0 18.5 17.1 16.0 15.0 14.1 13.3

6 in. 45.0 40.0 36.0 32.7 30.0 27.7 25.7 24.0 22.5 21.2 20.0

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 43.6 40.0 36.9 34.3 42.9 32.0 40.0 30.0 37.5 45.0 28.2 35.3 42.4 26.7 33.3 40.0 -

4 in. 39.5 35.1 31.6 28.7 26.3 24.3 22.6 21.1 19.8 18.6 17.6

6 in. 43.1 39.5 36.5 33.9 31.6 29.6 27.9 26.3

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 42.1 39.5 37.2 35.1 43.9 -

4 in. 44.0 35.2 29.3 25.1 22.0 19.6 17.6 16.0 14.7 13.5 12.6 11.7 11.0 10.4 9.8

14 in. 44.0 41.1 38.5 36.2 34.2

18 in. 44.0

WWR As/ LF 1.320 1.056 0.880 0.754 0.660 0.587 0.528 0.480 0.440 0.406 0.377 0.352 0.330 0.311 0.293

WWR #/CSF 451 360 300 257 225 200 180 164 150 139 129 120 113 106 100

16 in. -

18 in. -

WWR As/ LF 1.800 1.440 1.200 1.029 0.900 0.800 0.720 0.655 0.600 0.554 0.514 0.480 0.450 0.424 0.400

WWR #/CSF 613 491 409 350 307 273 245 223 204 189 175 164 153 144 136

16 in. -

18 in. -

WWR As/ LF 2.370 1.896 1.580 1.354 1.185 1.053 0.948 0.862 0.790 0.729 0.677 0.632 0.593 0.558 0.527

WWR #/CSF 801 641 534 458 401 356 320 291 267 246 229 214 200 188 178

16 in. 44.0 41.4 39.1

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page 5 • TF 209-R-08

TABLE 3 - #9, #10, #11 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 60,000 psi

Bars #9 @ 4" #9 @ 5" #9 @ 6" #9 @ 7" #9 @ 8" #9 @ 9" #9 @ 10" #9 @ 11" #9 @ 12" #9 @ 13" #9 @ 14" #9 @ 15" #9 @ 16" #9 @ 17" #9 @ 18"

AS / LF in2 3.000 2.400 2.000 1.714 1.500 1.333 1.200 1.091 1.000 0.923 0.857 0.800 0.750 0.706 0.667

Rebar #/CSF 1,014 811 676 579 507 451 406 369 338 312 290 270 253 239 225

6 in. 42.9 40.0 37.5 35.3 33.3

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 44.4 -

2 in. 40.0 33.3 28.6 25.0 22.2 20.0 18.2 16.7 15.4 14.3 13.3 12.5 11.8 11.1

4 in. 44.4 40.0 36.4 33.3 30.8 28.6 26.7 25.0 23.5 22.2

Bars #10 @ 4" #10 @ 5" #10 @ 6" #10 @ 7" #10 @ 8" #10 @ 9" #10 @ 10" #10 @ 11" #10 @ 12" #10 @ 13" #10 @ 14" #10 @ 15" #10 @ 16" #10 @ 17" #10 @ 18"

AS / LF in2 3.810 3.048 2.540 2.177 1.905 1.693 1.524 1.386 1.270 1.172 1.089 1.016 0.953 0.897 0.847

Rebar #/CSF 1,252 1,001 834 715 626 556 501 455 417 385 358 334 313 295 278

2 in. 42.3 36.3 31.8 28.2 25.4 23.1 21.2 19.5 18.1 16.9 15.9 14.9 14.1

Bars #11 @ 4" #11 @ 5" #11 @ 6" #11 @ 7" #11 @ 8" #11 @ 9" #11 @ 10" #11 @ 11" #11 @ 12" #11 @ 13" #11 @ 14" #11 @ 15" #11 @ 16" #11 @ 17" #11 @ 18"

AS / LF in2 4.680 3.744 3.120 2.674 2.340 2.080 1.872 1.702 1.560 1.440 1.337 1.248 1.170 1.101 1.040

Rebar #/CSF 1,515 1,212 1,010 865 757 673 606 551 505 466 433 404 379 356 337

2 in. 44.6 39.0 34.7 31.2 28.4 26.0 24.0 22.3 20.8 19.5 18.4 17.3

18 in. -

WWR As/ LF 3.000 2.400 2.000 1.714 1.500 1.333 1.200 1.091 1.000 0.923 0.857 0.800 0.750 0.706 0.667

WWR #/CSF 1014 811 676 579 507 451 406 369 338 312 290 270 253 239 225

16 in. -

4 in. 42.3 39.1 36.3 33.9 31.8 29.9 28.2

6 in. 44.8 42.3

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. -

16 in. -

18 in. -

WWR As/ LF 3.810 3.048 2.540 2.177 1.905 1.693 1.524 1.386 1.270 1.172 1.089 1.016 0.953 0.897 0.847

WWR #/CSF 1252 1001 834 715 626 556 501 455 417 385 358 334 313 295 278

4 in. 44.6 41.6 39.0 36.7 34.7

6 in. -

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. -

16 in. -

18 in. -

WWR As/ LF 4.680 3.744 3.120 2.674 2.340 2.080 1.872 1.702 1.560 1.440 1.337 1.248 1.170 1.101 1.040

WWR #/CSF 1515 1212 1010 865 757 673 606 551 505 466 433 404 379 356 337

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page 6 • TF 209-R-08

2 4 6TABLE 48 - #3, #4, 10 #5 12 14 16 18 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 70,000 psi

Bars #3 @ 4" #3 @ 5" #3 @ 6" #3 @ 7" #3 @ 8" #3 @ 9" #3 @ 10" #3 @ 11" #3 @ 12" #3 @ 13" #3 @ 14" #3 @ 15" #3 @ 16" #3 @ 17" #3 @ 18"

AS / LF in2 0.330 0.264 0.220 0.189 0.165 0.147 0.132 0.120 0.110 0.102 0.094 0.088 0.083 0.078 0.073

Rebar #/CSF 113 90 75 64 56 50 45 41 38 35 32 30 28 27 25

2 in. 4.7 3.8 3.1 2.7 2.4 2.1 1.9 1.7 1.6 1.5 1.3 1.3 1.2 1.1 1.0

Bars #4 @ 4" #4 @ 5" #4 @ 6" #4 @ 7" #4 @ 8" #4 @ 9" #4 @ 10" #4 @ 11" #4 @ 12" #4 @ 13" #4 @ 14" #4 @ 15" #4 @ 16" #4 @ 17" #4 @ 18"

AS / LF in2 0.600 0.480 0.400 0.343 0.300 0.267 0.240 0.218 0.200 0.185 0.171 0.160 0.150 0.141 0.133

Rebar #/CSF 200 160 134 114 100 89 80 73 67 62 57 53 50 47 45

Bars #5 @ 4" #5 @ 5" #5 @ 6" #5 @ 7" #5 @ 8" #5 @ 9" #5 @ 10" #5 @ 11" #5 @ 12" #5 @ 13" #5 @ 14" #5 @ 15" #5 @ 16" #5 @ 17" #5 @ 18"

AS / LF in2 0.930 0.744 0.620 0.531 0.465 0.413 0.372 0.338 0.310 0.286 0.266 0.248 0.233 0.219 0.207

Rebar #/CSF 313 250 209 179 156 139 125 114 104 96 89 83 78 74 70

18 in. 42.4 33.9 28.3 24.2 21.2 18.9 17.0 15.4 14.1 13.1 12.1 11.3 10.6 10.0 9.4

WWR As/ LF 0.283 0.226 0.189 0.162 0.141 0.126 0.113 0.103 0.094 0.087 0.081 0.075 0.071 0.067 0.063

WWR #/CSF 97 77 64 55 48 43 39 35 33 30 27 26 24 23 21

16 in. 45.7 39.2 34.3 30.5 27.4 24.9 22.9 21.1 19.6 18.3 17.1 16.1 15.2

18 in. 44.1 38.6 34.3 30.9 28.1 25.7 23.7 22.0 20.6 19.3 18.2 17.1

WWR As/ LF 0.514 0.411 0.343 0.294 0.257 0.229 0.206 0.187 0.171 0.158 0.147 0.137 0.129 0.121 0.114

WWR #/CSF 171 137 115 98 86 76 69 63 57 53 49 45 43 40 39

16 in. 42.5 38.7 35.4 32.7 30.4 28.3 26.6 25.0 23.6

18 in. 43.5 39.9 36.8 34.2 31.9 29.9 28.1 26.6

WWR As/ LF 0.797 0.638 0.531 0.455 0.399 0.354 0.319 0.290 0.266 0.245 0.228 0.213 0.199 0.188 0.177

WWR #/CSF 268 214 179 153 134 119 107 98 89 82 76 71 67 63 60

4 in. 9.4 7.5 6.3 5.4 4.7 4.2 3.8 3.4 3.1 2.9 2.7 2.5 2.4 2.2 2.1

Wire Sizes For Various Spacing 6 in. 8 in. 10 in. 12 in. 14.1 18.9 23.6 28.3 11.3 15.1 18.9 22.6 9.4 12.6 15.7 18.9 8.1 10.8 13.5 16.2 7.1 9.4 11.8 14.1 6.3 8.4 10.5 12.6 5.7 7.5 9.4 11.3 5.1 6.9 8.6 10.3 4.7 6.3 7.9 9.4 4.4 5.8 7.3 8.7 4.0 5.4 6.7 8.1 3.8 5.0 6.3 7.5 3.5 4.7 5.9 7.1 3.3 4.4 5.5 6.7 3.1 4.2 5.2 6.3

14 in. 33.0 26.4 22.0 18.9 16.5 14.7 13.2 12.0 11.0 10.2 9.4 8.8 8.3 7.8 7.3

16 in. 37.7 30.2 25.1 21.6 18.9 16.8 15.1 13.7 12.6 11.6 10.8 10.1 9.4 8.9 8.4

2 in. 8.6 6.9 5.7 4.9 4.3 3.8 3.4 3.1 2.9 2.6 2.4 2.3 2.1 2.0 1.9

4 in. 17.1 13.7 11.4 9.8 8.6 7.6 6.9 6.2 5.7 5.3 4.9 4.6 4.3 4.0 3.8

6 in. 25.7 20.6 17.1 14.7 12.9 11.4 10.3 9.4 8.6 7.9 7.3 6.9 6.4 6.1 5.7

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 34.3 42.9 27.4 34.3 41.1 22.9 28.6 34.3 19.6 24.5 29.4 17.1 21.4 25.7 15.2 19.1 22.9 13.7 17.1 20.6 12.5 15.6 18.7 11.4 14.3 17.1 10.5 13.2 15.8 9.8 12.2 14.7 9.1 11.4 13.7 8.6 10.7 12.9 8.1 10.1 12.1 7.6 9.5 11.4

14 in. 40.0 34.3 30.0 26.7 24.0 21.8 20.0 18.5 17.1 16.0 15.0 14.1 13.3

2 in. 13.3 10.6 8.9 7.6 6.6 5.9 5.3 4.8 4.4 4.1 3.8 3.5 3.3 3.1 3.0

4 in. 26.6 21.3 17.7 15.2 13.3 11.8 10.6 9.7 8.9 8.2 7.6 7.1 6.6 6.3 5.9

6 in. 39.9 31.9 26.6 22.8 19.9 17.7 15.9 14.5 13.3 12.3 11.4 10.6 10.0 9.4 8.9

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 42.5 35.4 44.3 30.4 38.0 26.6 33.2 39.9 23.6 29.5 35.4 21.3 26.6 31.9 19.3 24.2 29.0 17.7 22.1 26.6 16.4 20.4 24.5 15.2 19.0 22.8 14.2 17.7 21.3 13.3 16.6 19.9 12.5 15.6 18.8 11.8 14.8 17.7

14 in. 41.3 37.2 33.8 31.0 28.6 26.6 24.8 23.3 21.9 20.7

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page 2 7 • TF 209-R-08 209-R-03

TABLE 4 - #6, #7, #8 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 70,000 psi

Bars #6 @ 4" #6 @ 5" #6 @ 6" #6 @ 7" #6 @ 8" #6 @ 9" #6 @ 10" #6 @ 11" #6 @ 12" #6 @ 13" #6 @ 14" #6 @ 15" #6 @ 16" #6 @ 17" #6 @ 18"

AS / LF in2 1.320 1.056 0.880 0.754 0.660 0.587 0.528 0.480 0.440 0.406 0.377 0.352 0.330 0.311 0.293

Rebar #/CSF 451 360 300 257 225 200 180 164 150 139 129 120 113 106 100

2 in. 18.9 15.1 12.6 10.8 9.4 8.4 7.5 6.9 6.3 5.8 5.4 5.0 4.7 4.4 4.2

4 in. 37.7 30.2 25.1 21.6 18.9 16.8 15.1 13.7 12.6 11.6 10.8 10.1 9.4 8.9 8.4

6 in. 37.7 32.3 28.3 25.1 22.6 20.6 18.9 17.4 16.2 15.1 14.1 13.3 12.6

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 43.1 37.7 33.5 41.9 30.2 37.7 27.4 34.3 41.1 25.1 31.4 37.7 23.2 29.0 34.8 21.5 26.9 32.3 20.1 25.1 30.2 18.9 23.6 28.3 17.7 22.2 26.6 16.8 21.0 25.1

14 in. 44.0 40.6 37.7 35.2 33.0 31.1 29.3

16 in. 43.1 40.2 37.7 35.5 33.5

18 in. 42.4 39.9 37.7

WWR As/ LF 1.131 0.905 0.754 0.647 0.566 0.503 0.453 0.411 0.377 0.348 0.323 0.302 0.283 0.266 0.251

WWR #/CSF 387 309 257 220 193 171 154 141 129 119 111 103 97 91 86

Bars #7 @ 4" #7 @ 5" #7 @ 6" #7 @ 7" #7 @ 8" #7 @ 9" #7 @ 10" #7 @ 11" #7 @ 12" #7 @ 13" #7 @ 14" #7 @ 15" #7 @ 16" #7 @ 17" #7 @ 18"

AS / LF in2 1.800 1.440 1.200 1.029 0.900 0.800 0.720 0.655 0.600 0.554 0.514 0.480 0.450 0.424 0.400

Rebar #/CSF 613 491 409 350 307 273 245 223 204 189 175 164 153 144 136

2 in. 25.7 20.6 17.1 14.7 12.9 11.4 10.3 9.4 8.6 7.9 7.3 6.9 6.4 6.1 5.7

4 in. 41.1 34.3 29.4 25.7 22.9 20.6 18.7 17.1 15.8 14.7 13.7 12.9 12.1 11.4

6 in. 44.1 38.6 34.3 30.9 28.1 25.7 23.7 22.0 20.6 19.3 18.2 17.1

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 41.1 37.4 34.3 42.9 31.6 39.6 29.4 36.7 44.1 27.4 34.3 41.1 25.7 32.1 38.6 24.2 30.3 36.3 42.4 22.9 28.6 34.3 40.0

16 in. -

18 in. -

WWR As/ LF 1.543 1.234 1.029 0.882 0.771 0.686 0.617 0.561 0.514 0.475 0.441 0.411 0.386 0.363 0.343

WWR #/CSF 525 421 351 300 263 234 210 191 175 162 150 141 131 123 117

Bars #8 @ 4" #8 @ 5" #8 @ 6" #8 @ 7" #8 @ 8" #8 @ 9" #8 @ 10" #8 @ 11" #8 @ 12" #8 @ 13" #8 @ 14" #8 @ 15" #8 @ 16" #8 @ 17" #8 @ 18"

AS / LF in2 2.370 1.896 1.580 1.354 1.185 1.053 0.948 0.862 0.790 0.729 0.677 0.632 0.593 0.558 0.527

Rebar #/CSF 801 641 534 458 401 356 320 291 267 246 229 214 200 188 178

2 in. 33.9 27.1 22.6 19.3 16.9 15.0 13.5 12.3 11.3 10.4 9.7 9.0 8.5 8.0 7.5

4 in. 45.1 38.7 33.9 30.1 27.1 24.6 22.6 20.8 19.3 18.1 16.9 15.9 15.0

6 in. 45.1 40.6 36.9 33.9 31.3 29.0 27.1 25.4 23.9 22.6

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 45.1 41.7 38.7 36.1 45.1 33.9 42.3 31.9 39.8 30.1 37.6 45.1 -

16 in. -

18 in. -

WWR As/ LF 2.031 1.625 1.354 1.161 1.016 0.903 0.813 0.739 0.677 0.625 0.580 0.542 0.508 0.478 0.451

WWR #/CSF 687 549 458 393 344 305 274 249 229 211 196 183 171 161 153

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page 8 2 • TF 209-R-08 209-R-03

TABLE 4 - #9, #10, #11 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 70,000 psi

Bars #9 @ 4" #9 @ 5" #9 @ 6" #9 @ 7" #9 @ 8" #9 @ 9" #9 @ 10" #9 @ 11" #9 @ 12" #9 @ 13" #9 @ 14" #9 @ 15" #9 @ 16" #9 @ 17" #9 @ 18"

AS / LF in2 3.000 2.400 2.000 1.714 1.500 1.333 1.200 1.091 1.000 0.923 0.857 0.800 0.750 0.706 0.667

Rebar #/CSF 1,014 811 676 579 507 451 406 369 338 312 290 270 253 239 225

2 in. 42.9 34.3 28.6 24.5 21.4 19.0 17.1 15.6 14.3 13.2 12.2 11.4 10.7 10.1 9.5

4 in. 42.9 38.1 34.3 31.2 28.6 26.4 24.5 22.9 21.4 20.2 19.0

6 in. 42.9 39.6 36.7 34.3 32.1 30.3 28.6

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 42.9 40.3 38.1 -

16 in. -

18 in. -

WWR As/ LF 2.571 2.057 1.714 1.469 1.286 1.143 1.029 0.935 0.857 0.791 0.735 0.686 0.643 0.605 0.571

WWR #/CSF 869 695 579 496 435 387 348 316 290 267 249 231 217 205 193

Bars #10 @ 4" #10 @ 5" #10 @ 6" #10 @ 7" #10 @ 8" #10 @ 9" #10 @ 10" #10 @ 11" #10 @ 12" #10 @ 13" #10 @ 14" #10 @ 15" #10 @ 16" #10 @ 17" #10 @ 18"

AS / LF in2 3.810 3.048 2.540 2.177 1.905 1.693 1.524 1.386 1.270 1.172 1.089 1.016 0.953 0.897 0.847

Rebar #/CSF 1,252 1,001 834 715 626 556 501 455 417 385 358 334 313 295 278

2 in. 43.5 36.3 31.1 27.2 24.2 21.8 19.8 18.1 16.7 15.6 14.5 13.6 12.8 12.1

4 in. 43.5 39.6 36.3 33.5 31.1 29.0 27.2 25.6 24.2

6 in. 43.5 40.8 38.4 36.3

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. -

16 in. -

18 in. -

WWR As/ LF 3.266 2.613 2.177 1.866 1.633 1.451 1.306 1.188 1.089 1.005 0.933 0.871 0.816 0.768 0.726

WWR #/CSF 1073 858 715 613 537 477 429 390 357 330 307 286 268 253 238

Bars #11 @ 4" #11 @ 5" #11 @ 6" #11 @ 7" #11 @ 8" #11 @ 9" #11 @ 10" #11 @ 11" #11 @ 12" #11 @ 13" #11 @ 14" #11 @ 15" #11 @ 16" #11 @ 17" #11 @ 18"

AS / LF in2 4.680 3.744 3.120 2.674 2.340 2.080 1.872 1.702 1.560 1.440 1.337 1.248 1.170 1.101 1.040

Rebar #/CSF 1,515 1,212 1,010 865 757 673 606 551 505 466 433 404 379 356 337

2 in. 44.6 38.2 33.4 29.7 26.7 24.3 22.3 20.6 19.1 17.8 16.7 15.7 14.9

4 in. 44.6 41.1 38.2 35.7 33.4 31.5 29.7

6 in. 44.6

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. -

16 in. -

18 in. -

WWR As/ LF 4.011 3.209 2.674 2.292 2.006 1.783 1.605 1.459 1.337 1.234 1.146 1.070 1.003 0.944 0.891

WWR #/CSF 1299 1039 866 741 649 577 519 472 433 399 371 346 325 305 289

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page 9 2 • TF 209-R-08 209-R-03

2 4 6TABLE 58 - #3, #4, 10 #5 12 14 16 18 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 75,000 psi

Bars #3 @ 4" #3 @ 5" #3 @ 6" #3 @ 7" #3 @ 8" #3 @ 9" #3 @ 10" #3 @ 11" #3 @ 12" #3 @ 13" #3 @ 14" #3 @ 15" #3 @ 16" #3 @ 17" #3 @ 18"

AS / LF in2 0.330 0.264 0.220 0.189 0.165 0.147 0.132 0.120 0.110 0.102 0.094 0.088 0.083 0.078 0.073

Rebar #/CSF 113 90 75 64 56 50 45 41 38 35 32 30 28 27 25

2 in. 4.4 3.5 2.9 2.5 2.2 2.0 1.8 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0

Bars #4 @ 4" #4 @ 5" #4 @ 6" #4 @ 7" #4 @ 8" #4 @ 9" #4 @ 10" #4 @ 11" #4 @ 12" #4 @ 13" #4 @ 14" #4 @ 15" #4 @ 16" #4 @ 17" #4 @ 18"

AS / LF in2 0.600 0.480 0.400 0.343 0.300 0.267 0.240 0.218 0.200 0.185 0.171 0.160 0.150 0.141 0.133

Rebar #/CSF 200 160 134 114 100 89 80 73 67 62 57 53 50 47 45

Bars #5 @ 4" #5 @ 5" #5 @ 6" #5 @ 7" #5 @ 8" #5 @ 9" #5 @ 10" #5 @ 11" #5 @ 12" #5 @ 13" #5 @ 14" #5 @ 15" #5 @ 16" #5 @ 17" #5 @ 18"

AS / LF in2 0.930 0.744 0.620 0.531 0.465 0.413 0.372 0.338 0.310 0.286 0.266 0.248 0.233 0.219 0.207

Rebar #/CSF 313 250 209 179 156 139 125 114 104 96 89 83 78 74 70

18 in. 39.6 31.7 26.4 22.6 19.8 17.6 15.8 14.4 13.2 12.2 11.3 10.6 9.9 9.3 8.8

WWR As/ LF 0.264 0.211 0.176 0.151 0.132 0.117 0.106 0.096 0.088 0.081 0.075 0.070 0.066 0.062 0.059

WWR #/CSF 90 72 60 51 45 40 36 33 30 28 26 24 22 22 20

16 in. 42.7 36.6 32.0 28.4 25.6 23.3 21.3 19.7 18.3 17.1 16.0 15.1 14.2

18 in. 41.1 36.0 32.0 28.8 26.2 24.0 22.2 20.6 19.2 18.0 16.9 16.0

WWR As/ LF 0.480 0.384 0.320 0.274 0.240 0.213 0.192 0.175 0.160 0.148 0.137 0.128 0.120 0.113 0.107

WWR #/CSF 160 128 107 91 80 71 64 58 54 50 46 42 40 38 36

16 in. 44.1 39.7 36.1 33.1 30.5 28.3 26.5 24.8 23.3 22.0

18 in. 44.6 40.6 37.2 34.3 31.9 29.8 27.9 26.3 24.8

WWR As/ LF 0.744 0.595 0.496 0.425 0.372 0.331 0.298 0.271 0.248 0.229 0.213 0.198 0.186 0.175 0.165

WWR #/CSF 250 200 167 143 125 111 100 91 83 77 71 66 62 59 56

4 in. 8.8 7.0 5.9 5.0 4.4 3.9 3.5 3.2 2.9 2.7 2.5 2.3 2.2 2.1 2.0

Wire Sizes For Various Spacing 6 in. 8 in. 10 in. 12 in. 13.2 17.6 22.0 26.4 10.6 14.1 17.6 21.1 8.8 11.7 14.7 17.6 7.5 10.1 12.6 15.1 6.6 8.8 11.0 13.2 5.9 7.8 9.8 11.7 5.3 7.0 8.8 10.6 4.8 6.4 8.0 9.6 4.4 5.9 7.3 8.8 4.1 5.4 6.8 8.1 3.8 5.0 6.3 7.5 3.5 4.7 5.9 7.0 3.3 4.4 5.5 6.6 3.1 4.1 5.2 6.2 2.9 3.9 4.9 5.9

14 in. 30.8 24.6 20.5 17.6 15.4 13.7 12.3 11.2 10.3 9.5 8.8 8.2 7.7 7.2 6.8

16 in. 35.2 28.2 23.5 20.1 17.6 15.6 14.1 12.8 11.7 10.8 10.1 9.4 8.8 8.3 7.8

2 in. 8.0 6.4 5.3 4.6 4.0 3.6 3.2 2.9 2.7 2.5 2.3 2.1 2.0 1.9 1.8

4 in. 16.0 12.8 10.7 9.1 8.0 7.1 6.4 5.8 5.3 4.9 4.6 4.3 4.0 3.8 3.6

6 in. 24.0 19.2 16.0 13.7 12.0 10.7 9.6 8.7 8.0 7.4 6.9 6.4 6.0 5.6 5.3

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 32.0 40.0 25.6 32.0 38.4 21.3 26.7 32.0 18.3 22.9 27.4 16.0 20.0 24.0 14.2 17.8 21.3 12.8 16.0 19.2 11.6 14.5 17.5 10.7 13.3 16.0 9.8 12.3 14.8 9.1 11.4 13.7 8.5 10.7 12.8 8.0 10.0 12.0 7.5 9.4 11.3 7.1 8.9 10.7

14 in. 44.8 37.3 32.0 28.0 24.9 22.4 20.4 18.7 17.2 16.0 14.9 14.0 13.2 12.4

2 in. 12.4 9.9 8.3 7.1 6.2 5.5 5.0 4.5 4.1 3.8 3.5 3.3 3.1 2.9 2.8

4 in. 24.8 19.8 16.5 14.2 12.4 11.0 9.9 9.0 8.3 7.6 7.1 6.6 6.2 5.8 5.5

6 in. 37.2 29.8 24.8 21.3 18.6 16.5 14.9 13.5 12.4 11.4 10.6 9.9 9.3 8.8 8.3

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 39.7 33.1 41.3 28.3 35.4 42.5 24.8 31.0 37.2 22.0 27.6 33.1 19.8 24.8 29.8 18.0 22.5 27.1 16.5 20.7 24.8 15.3 19.1 22.9 14.2 17.7 21.3 13.2 16.5 19.8 12.4 15.5 18.6 11.7 14.6 17.5 11.0 13.8 16.5

14 in. 43.4 38.6 34.7 31.6 28.9 26.7 24.8 23.1 21.7 20.4 19.3

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page Page10 2 • TF 209-R-03 209-R-08

TABLE 5 - #6, #7, #8 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 75,000 psi

Bars #6 @ 4" #6 @ 5" #6 @ 6" #6 @ 7" #6 @ 8" #6 @ 9" #6 @ 10" #6 @ 11" #6 @ 12" #6 @ 13" #6 @ 14" #6 @ 15" #6 @ 16" #6 @ 17" #6 @ 18"

AS / LF in2 1.320 1.056 0.880 0.754 0.660 0.587 0.528 0.480 0.440 0.406 0.377 0.352 0.330 0.311 0.293

Rebar #/CSF 451 360 300 257 225 200 180 164 150 139 129 120 113 106 100

2 in. 17.6 14.1 11.7 10.1 8.8 7.8 7.0 6.4 5.9 5.4 5.0 4.7 4.4 4.1 3.9

4 in. 35.2 28.2 23.5 20.1 17.6 15.6 14.1 12.8 11.7 10.8 10.1 9.4 8.8 8.3 7.8

Bars #7 @ 4" #7 @ 5" #7 @ 6" #7 @ 7" #7 @ 8" #7 @ 9" #7 @ 10" #7 @ 11" #7 @ 12" #7 @ 13" #7 @ 14" #7 @ 15" #7 @ 16" #7 @ 17" #7 @ 18"

AS / LF in2 1.800 1.440 1.200 1.029 0.900 0.800 0.720 0.655 0.600 0.554 0.514 0.480 0.450 0.424 0.400

Rebar #/CSF 613 491 409 350 307 273 245 223 204 189 175 164 153 144 136

2 in. 24.0 19.2 16.0 13.7 12.0 10.7 9.6 8.7 8.0 7.4 6.9 6.4 6.0 5.6 5.3

Bars #8 @ 4" #8 @ 5" #8 @ 6" #8 @ 7" #8 @ 8" #8 @ 9" #8 @ 10" #8 @ 11" #8 @ 12" #8 @ 13" #8 @ 14" #8 @ 15" #8 @ 16" #8 @ 17" #8 @ 18"

AS / LF in2 2.370 1.896 1.580 1.354 1.185 1.053 0.948 0.862 0.790 0.729 0.677 0.632 0.593 0.558 0.527

Rebar #/CSF 801 641 534 458 401 356 320 291 267 246 229 214 200 188 178

2 in. 31.6 25.3 21.1 18.1 15.8 14.0 12.6 11.5 10.5 9.7 9.0 8.4 7.9 7.4 7.0

18 in. 42.2 39.6 37.3 35.2

WWR As/ LF 1.056 0.845 0.704 0.603 0.528 0.469 0.422 0.384 0.352 0.325 0.302 0.282 0.264 0.248 0.235

WWR #/CSF 361 288 240 206 180 160 144 131 120 111 103 96 90 85 80

16 in. 42.7

18 in. -

WWR As/ LF 1.440 1.152 0.960 0.823 0.720 0.640 0.576 0.524 0.480 0.443 0.411 0.384 0.360 0.339 0.320

WWR #/CSF 490 393 327 280 246 218 196 178 163 151 140 131 122 115 109

16 in. -

18 in. -

WWR As/ LF 1.896 1.517 1.264 1.083 0.948 0.843 0.758 0.689 0.632 0.583 0.542 0.506 0.474 0.446 0.421

WWR #/CSF 641 513 427 366 321 285 256 233 214 197 183 171 160 150 142

6 in. 42.2 35.2 30.2 26.4 23.5 21.1 19.2 17.6 16.2 15.1 14.1 13.2 12.4 11.7

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 40.2 35.2 44.0 31.3 39.1 28.2 35.2 42.2 25.6 32.0 38.4 23.5 29.3 35.2 21.7 27.1 32.5 20.1 25.1 30.2 18.8 23.5 28.2 17.6 22.0 26.4 16.6 20.7 24.8 15.6 19.6 23.5

14 in. 44.8 41.1 37.9 35.2 32.9 30.8 29.0 27.4

16 in. 43.3 40.2 37.5 35.2 33.1 31.3

4 in. 38.4 32.0 27.4 24.0 21.3 19.2 17.5 16.0 14.8 13.7 12.8 12.0 11.3 10.7

6 in. 41.1 36.0 32.0 28.8 26.2 24.0 22.2 20.6 19.2 18.0 16.9 16.0

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 42.7 38.4 34.9 43.6 32.0 40.0 29.5 36.9 44.3 27.4 34.3 41.1 25.6 32.0 38.4 24.0 30.0 36.0 22.6 28.2 33.9 21.3 26.7 32.0

14 in. 44.8 42.0 39.5 37.3

4 in. 42.1 36.1 31.6 28.1 25.3 23.0 21.1 19.4 18.1 16.9 15.8 14.9 14.0

6 in. 42.1 37.9 34.5 31.6 29.2 27.1 25.3 23.7 22.3 21.1

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 42.1 38.9 36.1 45.1 33.7 42.1 31.6 39.5 29.7 37.2 44.6 28.1 35.1 42.1 -

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page Page 11 2 • TF 209-R-08 209-R-03

TABLE 5 - #9, #10, #11 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 75,000 psi

Bars #9 @ 4" #9 @ 5" #9 @ 6" #9 @ 7" #9 @ 8" #9 @ 9" #9 @ 10" #9 @ 11" #9 @ 12" #9 @ 13" #9 @ 14" #9 @ 15" #9 @ 16" #9 @ 17" #9 @ 18"

AS / LF in2 3.000 2.400 2.000 1.714 1.500 1.333 1.200 1.091 1.000 0.923 0.857 0.800 0.750 0.706 0.667

Rebar #/CSF 1,014 811 676 579 507 451 406 369 338 312 290 270 253 239 225

2 in. 40.0 32.0 26.7 22.9 20.0 17.8 16.0 14.5 13.3 12.3 11.4 10.7 10.0 9.4 8.9

4 in. 40.0 35.6 32.0 29.1 26.7 24.6 22.9 21.3 20.0 18.8 17.8

6 in. 43.6 40.0 36.9 34.3 32.0 30.0 28.2 26.7

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 42.7 40.0 37.6 35.6 44.4 -

16 in. -

18 in. -

WWR As/ LF 2.400 1.920 1.600 1.371 1.200 1.067 0.960 0.873 0.800 0.738 0.686 0.640 0.600 0.565 0.533

WWR #/CSF 811 649 541 463 406 361 325 295 270 250 232 216 202 191 180

Bars #10 @ 4" #10 @ 5" #10 @ 6" #10 @ 7" #10 @ 8" #10 @ 9" #10 @ 10" #10 @ 11" #10 @ 12" #10 @ 13" #10 @ 14" #10 @ 15" #10 @ 16" #10 @ 17" #10 @ 18"

AS / LF in2 3.810 3.048 2.540 2.177 1.905 1.693 1.524 1.386 1.270 1.172 1.089 1.016 0.953 0.897 0.847

Rebar #/CSF 1,252 1,001 834 715 626 556 501 455 417 385 358 334 313 295 278

2 in. 40.6 33.9 29.0 25.4 22.6 20.3 18.5 16.9 15.6 14.5 13.5 12.7 12.0 11.3

4 in. 40.6 36.9 33.9 31.3 29.0 27.1 25.4 23.9 22.6

6 in. 43.5 40.6 38.1 35.9 33.9

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. -

16 in. -

18 in. -

WWR As/ LF 3.048 2.438 2.032 1.742 1.524 1.355 1.219 1.108 1.016 0.938 0.871 0.813 0.762 0.717 0.677

WWR #/CSF 1002 801 667 572 501 445 401 364 334 308 286 267 250 236 222

Bars #11 @ 4" #11 @ 5" #11 @ 6" #11 @ 7" #11 @ 8" #11 @ 9" #11 @ 10" #11 @ 11" #11 @ 12" #11 @ 13" #11 @ 14" #11 @ 15" #11 @ 16" #11 @ 17" #11 @ 18"

AS / LF in2 4.680 3.744 3.120 2.674 2.340 2.080 1.872 1.702 1.560 1.440 1.337 1.248 1.170 1.101 1.040

Rebar #/CSF 1,515 1,212 1,010 865 757 673 606 551 505 466 433 404 379 356 337

2 in. 41.6 35.7 31.2 27.7 25.0 22.7 20.8 19.2 17.8 16.6 15.6 14.7 13.9

4 in. 41.6 38.4 35.7 33.3 31.2 29.4 27.7

6 in. 44.0 41.6

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. -

16 in. -

18 in. -

WWR As/ LF 3.744 2.995 2.496 2.139 1.872 1.664 1.498 1.361 1.248 1.152 1.070 0.998 0.936 0.881 0.832

WWR #/CSF 1212 970 808 692 606 538 485 441 404 373 346 323 303 285 270

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page Page12 2 • TF 209-R-03 209-R-08

2 4 6TABLE 68 - #3, #4, 10 #5 12 14 16 18 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 80,000 psi

Bars #3 @ 4" #3 @ 5" #3 @ 6" #3 @ 7" #3 @ 8" #3 @ 9" #3 @ 10" #3 @ 11" #3 @ 12" #3 @ 13" #3 @ 14" #3 @ 15" #3 @ 16" #3 @ 17" #3 @ 18"

AS / LF in2 0.330 0.264 0.220 0.189 0.165 0.147 0.132 0.120 0.110 0.102 0.094 0.088 0.083 0.078 0.073

Rebar #/CSF 113 90 75 64 56 50 45 41 38 35 32 30 28 27 25

2 in. 4.1 3.3 2.8 2.4 2.1 1.8 1.7 1.5 1.4 1.3 1.2 1.1 1.0 1.0 0.9

4 in. 8.3 6.6 5.5 4.7 4.1 3.7 3.3 3.0 2.8 2.5 2.4 2.2 2.1 1.9 1.8

6 in. 12.4 9.9 8.3 7.1 6.2 5.5 5.0 4.5 4.1 3.8 3.5 3.3 3.1 2.9 2.7

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 16.5 20.6 24.8 13.2 16.5 19.8 11.0 13.8 16.5 9.4 11.8 14.1 8.3 10.3 12.4 7.3 9.2 11.0 6.6 8.3 9.9 6.0 7.5 9.0 5.5 6.9 8.3 5.1 6.3 7.6 4.7 5.9 7.1 4.4 5.5 6.6 4.1 5.2 6.2 3.9 4.9 5.8 3.7 4.6 5.5

14 in. 28.9 23.1 19.3 16.5 14.4 12.8 11.6 10.5 9.6 8.9 8.3 7.7 7.2 6.8 6.4

16 in. 33.0 26.4 22.0 18.9 16.5 14.7 13.2 12.0 11.0 10.2 9.4 8.8 8.3 7.8 7.3

18 in. 37.1 29.7 24.8 21.2 18.6 16.5 14.9 13.5 12.4 11.4 10.6 9.9 9.3 8.7 8.2

WWR As/ LF 0.248 0.198 0.165 0.141 0.124 0.110 0.099 0.090 0.083 0.076 0.071 0.066 0.062 0.058 0.055

WWR #/CSF 85 68 56 48 42 38 34 31 29 26 24 23 21 20 19

Bars #4 @ 4" #4 @ 5" #4 @ 6" #4 @ 7" #4 @ 8" #4 @ 9" #4 @ 10" #4 @ 11" #4 @ 12" #4 @ 13" #4 @ 14" #4 @ 15" #4 @ 16" #4 @ 17" #4 @ 18"

AS / LF in2 0.600 0.480 0.400 0.343 0.300 0.267 0.240 0.218 0.200 0.185 0.171 0.160 0.150 0.141 0.133

Rebar #/CSF 200 160 134 114 100 89 80 73 67 62 57 53 50 47 45

2 in. 7.5 6.0 5.0 4.3 3.8 3.3 3.0 2.7 2.5 2.3 2.1 2.0 1.9 1.8 1.7

4 in. 15.0 12.0 10.0 8.6 7.5 6.7 6.0 5.5 5.0 4.6 4.3 4.0 3.8 3.5 3.3

6 in. 22.5 18.0 15.0 12.9 11.3 10.0 9.0 8.2 7.5 6.9 6.4 6.0 5.6 5.3 5.0

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 30.0 37.5 45.0 24.0 30.0 36.0 20.0 25.0 30.0 17.1 21.4 25.7 15.0 18.8 22.5 13.3 16.7 20.0 12.0 15.0 18.0 10.9 13.6 16.4 10.0 12.5 15.0 9.2 11.5 13.8 8.6 10.7 12.9 8.0 10.0 12.0 7.5 9.4 11.3 7.1 8.8 10.6 6.7 8.3 10.0

14 in. 42.0 35.0 30.0 26.3 23.3 21.0 19.1 17.5 16.2 15.0 14.0 13.1 12.4 11.7

16 in. 40.0 34.3 30.0 26.7 24.0 21.8 20.0 18.5 17.1 16.0 15.0 14.1 13.3

18 in. 38.6 33.8 30.0 27.0 24.5 22.5 20.8 19.3 18.0 16.9 15.9 15.0

WWR As/ LF 0.450 0.360 0.300 0.257 0.225 0.200 0.180 0.164 0.150 0.138 0.129 0.120 0.113 0.106 0.100

WWR #/CSF 150 120 101 86 75 67 60 55 50 47 43 40 38 35 34

Bars #5 @ 4" #5 @ 5" #5 @ 6" #5 @ 7" #5 @ 8" #5 @ 9" #5 @ 10" #5 @ 11" #5 @ 12" #5 @ 13" #5 @ 14" #5 @ 15" #5 @ 16" #5 @ 17" #5 @ 18"

AS / LF in2 0.930 0.744 0.620 0.531 0.465 0.413 0.372 0.338 0.310 0.286 0.266 0.248 0.233 0.219 0.207

Rebar #/CSF 313 250 209 179 156 139 125 114 104 96 89 83 78 74 70

2 in. 11.6 9.3 7.8 6.6 5.8 5.2 4.7 4.2 3.9 3.6 3.3 3.1 2.9 2.7 2.6

4 in. 23.3 18.6 15.5 13.3 11.6 10.3 9.3 8.5 7.8 7.2 6.6 6.2 5.8 5.5 5.2

6 in. 34.9 27.9 23.3 19.9 17.4 15.5 14.0 12.7 11.6 10.7 10.0 9.3 8.7 8.2 7.8

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 37.2 31.0 38.8 26.6 33.2 39.9 23.3 29.1 34.9 20.7 25.8 31.0 18.6 23.3 27.9 16.9 21.1 25.4 15.5 19.4 23.3 14.3 17.9 21.5 13.3 16.6 19.9 12.4 15.5 18.6 11.6 14.5 17.4 10.9 13.7 16.4 10.3 12.9 15.5

14 in. 40.7 36.2 32.6 29.6 27.1 25.0 23.2 21.7 20.3 19.1 18.1

16 in. 41.3 37.2 33.8 31.0 28.6 26.6 24.8 23.3 21.9 20.7

18 in. 41.9 38.0 34.9 32.2 29.9 27.9 26.2 24.6 23.3

WWR As/ LF 0.698 0.558 0.465 0.399 0.349 0.310 0.279 0.254 0.233 0.215 0.199 0.186 0.174 0.164 0.155

WWR #/CSF 235 188 157 134 117 104 94 86 78 72 67 62 59 56 53

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page Page13 2 • TF 209-R-03 209-R-08

TABLE 6 - #6, #7, #8 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 80,000 psi

Bars #6 @ 4" #6 @ 5" #6 @ 6" #6 @ 7" #6 @ 8" #6 @ 9" #6 @ 10" #6 @ 11" #6 @ 12" #6 @ 13" #6 @ 14" #6 @ 15" #6 @ 16" #6 @ 17" #6 @ 18"

AS / LF in2 1.320 1.056 0.880 0.754 0.660 0.587 0.528 0.480 0.440 0.406 0.377 0.352 0.330 0.311 0.293

Rebar #/CSF 451 360 300 257 225 200 180 164 150 139 129 120 113 106 100

2 in. 16.5 13.2 11.0 9.4 8.3 7.3 6.6 6.0 5.5 5.1 4.7 4.4 4.1 3.9 3.7

4 in. 33.0 26.4 22.0 18.9 16.5 14.7 13.2 12.0 11.0 10.2 9.4 8.8 8.3 7.8 7.3

6 in. 49.5 39.6 33.0 28.3 24.8 22.0 19.8 18.0 16.5 15.2 14.1 13.2 12.4 11.6 11.0

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 44.0 37.7 47.1 33.0 41.3 49.5 29.3 36.7 44.0 26.4 33.0 39.6 24.0 30.0 36.0 22.0 27.5 33.0 20.3 25.4 30.5 18.9 23.6 28.3 17.6 22.0 26.4 16.5 20.6 24.8 15.5 19.4 23.3 14.7 18.3 22.0

14 in. 46.2 42.0 38.5 35.5 33.0 30.8 28.9 27.2 25.7

16 in. 48.0 44.0 40.6 37.7 35.2 33.0 31.1 29.3

18 in. 49.5 45.7 42.4 39.6 37.1 34.9 33.0

WWR As/ LF 0.990 0.792 0.660 0.566 0.495 0.440 0.396 0.360 0.330 0.305 0.283 0.264 0.248 0.233 0.220

WWR #/CSF 338 270 225 193 169 150 135 123 113 104 97 90 85 80 75

Bars #7 @ 4" #7 @ 5" #7 @ 6" #7 @ 7" #7 @ 8" #7 @ 9" #7 @ 10" #7 @ 11" #7 @ 12" #7 @ 13" #7 @ 14" #7 @ 15" #7 @ 16" #7 @ 17" #7 @ 18"

AS / LF in2 1.800 1.440 1.200 1.029 0.900 0.800 0.720 0.655 0.600 0.554 0.514 0.480 0.450 0.424 0.400

Rebar #/CSF 613 491 409 350 307 273 245 223 204 189 175 164 153 144 136

2 in. 22.5 18.0 15.0 12.9 11.3 10.0 9.0 8.2 7.5 6.9 6.4 6.0 5.6 5.3 5.0

4 in. 45.0 36.0 30.0 25.7 22.5 20.0 18.0 16.4 15.0 13.8 12.9 12.0 11.3 10.6 10.0

6 in. 45.0 38.6 33.8 30.0 27.0 24.5 22.5 20.8 19.3 18.0 16.9 15.9 15.0

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 45.0 40.0 36.0 45.0 32.7 40.9 30.0 37.5 45.0 27.7 34.6 41.5 25.7 32.1 38.6 24.0 30.0 36.0 22.5 28.1 33.8 21.2 26.5 31.8 20.0 25.0 30.0

14 in. 45.0 42.0 39.4 37.1 35.0

16 in. 45.0 42.4 40.0

18 in. 45.0

WWR As/ LF 1.350 1.080 0.900 0.771 0.675 0.600 0.540 0.491 0.450 0.415 0.386 0.360 0.338 0.318 0.300

WWR #/CSF 460 368 307 263 230 205 184 167 153 142 131 123 115 108 102

Bars #8 @ 4" #8 @ 5" #8 @ 6" #8 @ 7" #8 @ 8" #8 @ 9" #8 @ 10" #8 @ 11" #8 @ 12" #8 @ 13" #8 @ 14" #8 @ 15" #8 @ 16" #8 @ 17" #8 @ 18"

AS / LF in2 2.370 1.896 1.580 1.354 1.185 1.053 0.948 0.862 0.790 0.729 0.677 0.632 0.593 0.558 0.527

Rebar #/CSF 801 641 534 458 401 356 320 291 267 246 229 214 200 188 178

6 in. 44.4 39.5 35.6 32.3 29.6 27.3 25.4 23.7 22.2 20.9 19.8

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 43.1 39.5 36.5 33.9 42.3 31.6 39.5 29.6 37.0 44.4 27.9 34.9 41.8 26.3 32.9 39.5 -

18 in. -

WWR As/ LF 1.778 1.422 1.185 1.016 0.889 0.790 0.711 0.646 0.593 0.547 0.508 0.474 0.444 0.418 0.395

WWR #/CSF 601 481 401 344 301 267 240 218 200 185 172 161 150 141 134

2 in. 29.6 23.7 19.8 16.9 14.8 13.2 11.9 10.8 9.9 9.1 8.5 7.9 7.4 7.0 6.6

4 in. 39.5 33.9 29.6 26.3 23.7 21.5 19.8 18.2 16.9 15.8 14.8 13.9 13.2

16 in. -

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.

Page Page14 2 • TF 209-R-03 209-R-08

TABLE 6 - #9, #10, #11 COMPARISON TABLES - REINFORCING BARS & WELDED WIRE REINFORCEMENT Rebar @ 60,000 psi and Welded Wire Reinforcement @ 80,000 psi

Bars #9 @ 4" #9 @ 5" #9 @ 6" #9 @ 7" #9 @ 8" #9 @ 9" #9 @ 10" #9 @ 11" #9 @ 12" #9 @ 13" #9 @ 14" #9 @ 15" #9 @ 16" #9 @ 17" #9 @ 18"

AS / LF in2 3.000 2.400 2.000 1.714 1.500 1.333 1.200 1.091 1.000 0.923 0.857 0.800 0.750 0.706 0.667

Rebar #/CSF 1,014 811 676 579 507 451 406 369 338 312 290 270 253 239 225

6 in. 45.0 40.9 37.5 34.6 32.1 30.0 28.1 26.5 25.0

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 42.9 40.0 37.5 35.3 44.1 33.3 41.7 -

2 in. 37.5 30.0 25.0 21.4 18.8 16.7 15.0 13.6 12.5 11.5 10.7 10.0 9.4 8.8 8.3

4 in. 42.9 37.5 33.3 30.0 27.3 25.0 23.1 21.4 20.0 18.8 17.6 16.7

Bars #10 @ 4" #10 @ 5" #10 @ 6" #10 @ 7" #10 @ 8" #10 @ 9" #10 @ 10" #10 @ 11" #10 @ 12" #10 @ 13" #10 @ 14" #10 @ 15" #10 @ 16" #10 @ 17" #10 @ 18"

AS / LF in2 3.810 3.048 2.540 2.177 1.905 1.693 1.524 1.386 1.270 1.172 1.089 1.016 0.953 0.897 0.847

Rebar #/CSF 1,252 1,001 834 715 626 556 501 455 417 385 358 334 313 295 278

2 in. 38.1 31.8 27.2 23.8 21.2 19.1 17.3 15.9 14.7 13.6 12.7 11.9 11.2 10.6

Bars #11 @ 4" #11 @ 5" #11 @ 6" #11 @ 7" #11 @ 8" #11 @ 9" #11 @ 10" #11 @ 11" #11 @ 12" #11 @ 13" #11 @ 14" #11 @ 15" #11 @ 16" #11 @ 17" #11 @ 18"

AS / LF in2 4.680 3.744 3.120 2.674 2.340 2.080 1.872 1.702 1.560 1.440 1.337 1.248 1.170 1.101 1.040

Rebar #/CSF 1,515 1,212 1,010 865 757 673 606 551 505 466 433 404 379 356 337

2 in. 39.0 33.4 29.3 26.0 23.4 21.3 19.5 18.0 16.7 15.6 14.6 13.8 13.0

18 in. -

WWR As/ LF 2.250 1.800 1.500 1.286 1.125 1.000 0.900 0.818 0.750 0.692 0.643 0.600 0.563 0.529 0.500

WWR #/CSF 761 608 507 434 380 338 305 277 254 234 218 203 190 179 169

16 in. -

4 in. 42.3 38.1 34.6 31.8 29.3 27.2 25.4 23.8 22.4 21.2

6 in. 44.0 40.8 38.1 35.7 33.6 31.8

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. 44.8 42.3 -

16 in. -

18 in. -

WWR As/ LF 2.858 2.286 1.905 1.633 1.429 1.270 1.143 1.039 0.953 0.879 0.816 0.762 0.714 0.672 0.635

WWR #/CSF 939 751 626 536 470 417 376 341 313 289 269 251 235 221 209

4 in. 42.5 39.0 36.0 33.4 31.2 29.3 27.5 26.0

6 in. 43.9 41.3 39.0

Wire Sizes For Various Spacing 8 in. 10 in. 12 in. 14 in. -

16 in. -

18 in. -

WWR As/ LF 3.510 2.808 2.340 2.006 1.755 1.560 1.404 1.276 1.170 1.080 1.003 0.936 0.878 0.826 0.780

WWR #/CSF 1136 909 758 649 568 505 455 413 379 350 325 303 284 267 253

* Weight per 100 square feet are for one direction only. Double the weight for the same reinforcement in the other direction, or add the appropriate weight for a different pattern in the other direction. Weight per 100 square feet are theoretical and are intended for estimating purposes only.