Hot-Rolled Sheet Thickness Tolerances

The table below shows the ASTM thickness tolerances for hot 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).

Hot Rolled Sheet Thickness Tolerances

Gauge* Min. Max. Nom Lbs/sqft
4 0.2152 0.2332 0.2242 9.376
5 0.2002 0.2182 0.2092 8.748
6 0.1853 0.2033 0.1943 8.125
7 0.1713 0.1873 0.1793 7.498
8 0.1564 0.1724 0.1644 6.875
9 0.1415 0.1575 0.1495 6.252
10 0.1265 0.1425 0.1345 5.624
11 0.1116 0.1276 0.1196 5.001
12 0.0966 0.1126 0.1046 4.374
13 0.0827 0.0967 0.0897 3.751
14 0.0677 0.0817 0.0747 3.124
15 0.0613 0.0733 0.0673 2.814
16 0.0538 0.0658 0.0598 2.501
17 0.0478 0.0598 0.0538 2.25
18 0.0428 0.0528 0.0478 1.999

*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.