Dr. J. M. Mulay Consulting Engineers Pvt. Ltd.

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:Area of different diameters of bars:

8 10 12 16 18 20 22 25 32

No. of bars

1 50.265 78.540 113.097 201.062 254.469 314.159 380.133 490.874 804.248

2 100.531 157.080 226.195 402.124 508.938 628.319 760.265 981.748 1608.495

3 150.796 235.619 339.292 603.186 763.407 942.478 1140.398 1472.622 2412.743

4 201.062 314.159 452.389 804.248 1017.876 1256.637 1520.531 1963.495 3216.991

5 251.327 392.699 565.487 1005.310 1272.345 1570.796 1900.664 2454.369 4021.239

6 301.593 471.239 678.584 1206.372 1526.814 1884.956 2280.796 2945.243 4825.486

7 351.858 549.779 791.681 1407.434 1781.283 2199.115 2660.929 3436.117 5629.734

8 402.124 628.319 904.779 1608.495 2035.752 2513.274 3041.062 3926.991 6433.982

9 452.389 706.858 1017.876 1809.557 2290.221 2827.433 3421.194 4417.865 7238.229

10 502.655 785.398 1130.973 2010.619 2544.690 3141.593 3801.327 4908.739 8042.477

11 552.920 863.938 1244.071 2211.681 2799.159 3455.752 4181.460 5399.612 8846.725

12 603.186 942.478 1357.168 2412.743 3053.628 3769.911 4561.593 5890.486 9650.973

13 653.451 1021.018 1470.265 2613.805 3308.097 4084.070 4941.725 6381.360 10455.220

14 703.717 1099.557 1583.363 2814.867 3562.566 4398.230 5321.858 6872.234 11259.468

15 753.982 1178.097 1696.460 3015.929 3817.035 4712.389 5701.991 7363.108 12063.716

16 804.248 1256.637 1809.557 3216.991 4071.504 5026.548 6082.123 7853.982 12867.964

17 854.513 1335.177 1922.655 3418.053 4325.973 5340.708 6462.256 8344.855 13672.211

18 904.779 1413.717 2035.752 3619.115 4580.442 5654.867 6842.389 8835.729 14476.459

19 955.044 1492.257 2148.849 3820.177 4834.911 5969.026 7222.522 9326.603 15280.707

20 1005.310 1570.796 2261.947 4021.239 5089.380 6283.185 7602.654 9817.477 16084.954

21 1055.575 1649.336 2375.044 4222.301 5343.849 6597.345 7982.787 10308.351 16889.202

22 1105.841 1727.876 2488.141 4423.362 5598.318 6911.504 8362.920 10799.225 17693.450

23 1156.106 1806.416 2601.239 4624.424 5852.787 7225.663 8743.052 11290.099 18497.698

Bar Diameter

Area in mm2

Area in mm2

Area in mm2

Area in mm2

Area in mm2

Area in mm2

Area in mm2

Area in mm2

Area in mm2

Dr. J. M. Mulay Consulting Engineers Pvt. Ltd.

2

24 1206.372 1884.956 2714.336 4825.486 6107.256 7539.822 9123.185 11780.972 19301.945

25 1256.637 1963.495 2827.433 5026.548 6361.725 7853.982 9503.318 12271.846 20106.193

Dr. J. M. Mulay Consulting Engineers Pvt. Ltd.

3

:Area of various spacing of different bars:

Bar Diameter 8 10 12 16 20 25

90 558.505 872.665 1256.637 2234.021 3490.659 5454.154

95 529.110 826.735 1190.498 2116.441 3306.940 5167.093

100 502.655 785.398 1130.973 2010.619 3141.593 4908.739

110 456.959 713.998 1028.158 1827.836 2855.993 4462.490

115 437.091 682.955 983.455 1748.365 2731.820 4268.468

120 418.879 654.498 942.478 1675.516 2617.994 4090.615

125 402.124 628.319 904.779 1608.495 2513.274 3926.991

130 386.658 604.152 869.980 1546.630 2416.610 3775.953

135 372.337 581.776 837.758 1489.348 2327.106 3636.103

140 359.039 560.999 807.838 1436.157 2243.995 3506.242

145 346.658 541.654 779.982 1386.634 2166.616 3385.337

150 335.103 523.599 753.982 1340.413 2094.395 3272.492

155 324.293 506.708 729.660 1297.174 2026.834 3166.928

160 314.159 490.874 706.858 1256.637 1963.495 3067.962

165 304.639 475.999 685.438 1218.557 1903.996 2974.993

170 295.679 461.999 665.278 1182.717 1847.996 2887.493

175 287.231 448.799 646.270 1148.925 1795.196 2804.993

180 279.253 436.332 628.319 1117.011 1745.329 2727.077

185 271.705 424.540 611.337 1086.821 1698.158 2653.372

190 264.555 413.367 595.249 1058.221 1653.470 2583.547

200 251.327 392.699 565.487 1005.310 1570.796 2454.369

210 239.359 373.999 538.559 957.438 1495.997 2337.495

220 228.479 356.999 514.079 913.918 1427.997 2231.245

Spacing of bars

Area in mm2 Area in mm2 Area in mm2 Area in mm2 Area in mm2 Area in mm2

Dr. J. M. Mulay Consulting Engineers Pvt. Ltd.

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Bar Diameter 8 10 12 16 20 25

Spacing of bars

Area in mm2 Area in mm2 Area in mm2 Area in mm2 Area in mm2 Area in mm2

225 223.402 349.066 502.655 893.609 1396.263 2181.662

230 218.546 341.477 491.728 874.182 1365.910 2134.234

235 213.896 334.212 481.265 855.583 1336.848 2088.825

240 209.440 327.249 471.239 837.758 1308.997 2045.308

245 205.165 320.571 461.622 820.661 1282.283 2003.567

250 201.062 314.159 452.389 804.248 1256.637 1963.495

255 197.120 307.999 443.519 788.478 1231.997 1924.995

260 193.329 302.076 434.990 773.315 1208.305 1887.976

265 189.681 296.377 426.782 758.724 1185.507 1852.354

270 186.168 290.888 418.879 744.674 1163.553 1818.051

275 182.784 285.599 411.263 731.134 1142.397 1784.996

280 179.520 280.499 403.919 718.078 1121.997 1753.121

300 167.552 261.799 376.991 670.206 1047.198 1636.246