Sheet Metal Gauge Chart GAUGEno. Non-FerrousBrown & Sharp Steel Sheets Strip & TubingBirmingham or Stubs lbs./Sq. ft.1100,6061Aluminum Gauge Decimal lbs./Sq. ft.Alloy 260Brass GaugeDecimal lbs./Sq. ft.Steel Strip Gauge Decimal lbs./Sq. ft.Steel Strip 000000 - .5800 - - - - - 00000 - .5165 - - - .500 20.40 0000 - .4600 - - - .454 18.52 000 - .4096 - - - .425 17.34 00 - .3648 - - - .380 15.50 0 - .3249 - - - .340 13.87 1 - .2893 - - - .300 12.24 2 - .2576 - - - .284 11.59 3 - .2294 - .2391 9.754 .259 10.57 4 - .2043 - .2242 9.146 .238 9.710 5 - .1819 - .2092 8.534 .220 8.975 6 2.286 .1620 7.185 .1943 7.926 .203 8.281 7 2.036 .1443 6.400 .1793 7.315 .180 7.343 8 1.813 .1285 5.699 .1644 6.707 .165 6.731 9 1.614 .1144 5.074 .1495 6.099 .148 6.038 10 1.438 .1019 4.520 .1345 5.487 .134 5.467 11 1.280 .0907 4.023 .1196 4.879 .120 4.895 12 1.140 .0808 3.584 .1046 4.267 .109 4.447 13 1.016 .0720 3.193 .0897 3.659 .095 3.876 14 .905 .0641 2.843 .0747 3.047 .083 3.386 15 .806 .0571 2.532 .0673 2.746 .072 2.937 16 .717 .0508 2.253 .0598 2.440 .065 2.652 17 .639 .0453 2.009 .0538 2.195 .058 2.366 18 .569 .0403 1.787 .0478 1.950 .049 1.999 19 .507 .0359 1.592 .0418 1.705 .042 1.713 20 .452 .0320 1.419 .0359 1.465 .035 1.428 21 .402 .0285 1.264 .0329 1.342 .032 1.305 22 .357 .0253 1.122 .0299 1.220 .028 1.142 23 .319 .0226 1.002 .0269 1.097 .025 1.020 24 .284 .0201 .892 .0239 .975 .022 .898 25 .253 .0179 .794 .0209 .853 .020 .816 26 .224 .0159 .705 .0179 .730 .018 .734 27 .200 .0142 .630 .0164 .669