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    SMU ASTM Thickness Tolerances - Cold Rolled

    Cold-Rolled Sheet Thickness Tolerances

    The table below shows the ASTM thickness tolerances for cold rolled steel as well as weight in pounds per square feet. Sheet weights are based on ordered thickness at 41.82 pounds per square foot per inch thick (nominal weight).

    Sheet weights are based on ordered thickness at 41.82 pounds per square foot per inch thick (nominal weight).

    Cold Rolled Sheet Thickness Tolerances

    Gauge Min. Max. Nom Lbs/sqft
    10 0.1285 0.1405 0.1345 5.624
    11 0.1136 0.1256 0.1196 5.001
    12 0.0986 0.1106 0.1046 4.374
    13 0.0847 0.0947 0.0897 3.751
    14 0.0697 0.0797 0.0747 3.124
    15 0.0623 0.0723 0.0673 2.814
    16 0.0548 0.0648 0.0598 2.501
    17 0.0498 0.0578 0.0538 2.25
    18 0.0438 0.0518 0.0478 1.999
    19 0.0378 0.0458 0.0418 1.748
    20 0.0329 0.0389 0.0359 1.501
    21 0.0299 0.0359 0.0329 1.376
    22 0.0269 0.0329 0.0299 1.25
    23 0.0239 0.0299 0.0269 1.125
    24 0.0209 0.0269 0.0239 0.999
    25 0.0179 0.0239 0.0209 0.874
    26 0.0159 0.0199 0.0179 0.749
    27 0.0144 0.0184 0.0164 0.686
    28 0.0129 0.0169 0.0149 0.623

    *Gauge numbers are related to the construction/HVAC industries, while other industries/end uses may use different gauge and thickness designations. We suggest using the actual reference thickness in decimal inches.

    You can visit the ASTM International website at https://www.astm.org/ for more information.