Standard Sheet Gauge and Weights  
For Accuracy
Specify Thickness by Decimal Part of an Inch
 
Carbon Sheets to U.S.S. or Mfrs. Gauge Galvanized Sheets to Galvanized Sheet Guage Stainless Sheets to Stainless Sheet Gauge
            Pounds per Sq Ft
Gauge no. Thickness in Inches Pounds Per Sq. Ft. Thickness in Inches Pounds Per Sq. Ft. Thickness in Inches 200 & 300 Series 400 Series
3 .2391 10.00          
4 .2242 9.375          
5 .2092 8.750          
6 .1943 8.125          
7 .1793 7.500          
8 .1644 6.875 .1681 7.031 .171875 7.2187 7.0813
9 .1495 6.250 .1532 6.406 .156250 6.5625 6.4375
10 .1345 5.625 .1382 5.781 .140625 5.9062 5.7937
11 .1196 5.000 .1233 5.516 .125000 5.2500 5.1500
12 .1046 4.375 .1084 4.531 .109375 4.5937 4.5063
13 .0897 3.750 .0934 3.906 .09375 3.9375 3.8625
14 .0747 3.125 .0785 3.281 .078125 3.2812 3.2187
15 .0673 2.813 .0710 2.969 .070313 2.9531 2.8968
16 .0598 2.500 .0635 2.656 .062500 2.6250 2.5750
17 .0538 2.250 .0575 2.406 .056250 2.3625 2.3175
18 .0478 2.000 .0516 2.156 .050000 2.1000 2.0600
19 .0418 1.750 .0456 1.906 .043750 1.8375 1.8025
20 .0359 1.500 .0396 1.656 .037500 1.5750 1.5450
21 .0329 1.375 .0366 1.531 .034375 1.4437 1.4160
22 .0299 1.250 .0336 1.406 .031250 1.3125 1.2875
23 .0269 1.125 .0306 1.281 .028125 1.1813 1.1587
24 .0239 1.000 .0276 1.156 .025000 1.0500 1.0300
25 .0209 .8750 .0247 1.031 .021875 .9187 .9013
26 .0179 .7500 .0217 .9063 .018750 .7875 .7725
27 .0164 .6875 .0202 .8438 .017188 .7218 .7081
28 .0149 .6250 .0187 .7813 .015625 .6562 .6438
29 .0135 .5625 .0172 .7188 .014063 .5906 .5794
30 .0120 .5000 .0157 .6563 .012500 .5250 .5150
               
¼” Thick & Heavier classed as plates.      
 
Sheets ordered by gauge weight or thickness are subject to standard thickness and weight tolerances.
The Galvanized Sheet Gauge is based on the U.S. Standard Gauge.
Each Galvanized Sheet Gauge Number is 2.5 ounces per sq. Ft. heavier or .0037 inch thicker than the weight or thickness of the corresponding U.S. Standard Gauge Number, regardless of coating weights.