Gauge chart
10 gauge steel thickness
10 gauge steel is 0.1345 inches thick, which is 3.42 mm. One square foot weighs 5.49 pounds.
10 gauge in figures
Inches 0.1345in
Millimetres 3.42mm
Weight 5.49lb/ft²
4×8 sheet 176lb
Close to 9/64 inch (0.1406). In practice, about an eighth of an inch.
| Material | Inches | mm | lb/ft² | Standard |
|---|---|---|---|---|
| Steel | 0.1345 | 3.42 | 5.49 | Manufacturers' Standard Gauge (MSG) |
| Galvanized | 0.1382 | 3.51 | 5.64 | MSG plus G90 zinc coating |
| Stainless | 0.1406 | 3.57 | 5.85 | Manufacturers' standard for stainless sheet |
| Aluminium | 0.1019 | 2.59 | 1.43 | Brown & Sharpe (AWG) |
What 10 gauge steel is used for
Heavy plate work below quarter inch: skid plates, trailer tongues, machine frames and wear surfaces.
Common questions
How thick is 10 gauge steel?
- 10 gauge steel is 0.1345 inches thick, which is 3.42 mm. One square foot weighs 5.49 pounds. For reference that is about an eighth of an inch. Thicknesses are nominal and mill tolerance applies, so measure the sheet for anything structural.
What is 10 gauge steel in mm?
- 3.42 mm. The conversion is exact: 0.1345 inches times 25.4 gives 3.416 mm, rounded to 3.42.
Is 10 gauge stainless the same thickness as 10 gauge steel?
- No. 10 gauge galvanized is 0.1382 inches, stainless is 0.1406 inches, aluminium is 0.1019 inches, against 0.1345 inches for uncoated steel. Each material is tabulated under a different standard, so the gauge number alone does not give a thickness.
What does a 4x8 sheet of 10 gauge steel weigh?
- About 176 pounds. A 4 foot by 8 foot sheet is 32 square feet and 10 gauge weighs 5.49 pounds per square foot, so 32 times 5.49 is 175.8 pounds.