11 gauge steel thickness
11 gauge sheet steel is 0.1196 inches thick, or 3.04 mm. It weighs 4.88 lb per square foot, so a standard 4×8 sheet comes in around 156 lb.
Inches
0.1196"
Millimetres
3.04 mm
Weight
4.88 lb/ft²
4×8 sheet
156 lb
What 11 gauge is used for
Handrail posts, heavy gauge tube walls, and equipment frames. Frequently specified for guardrail components.
11 gauge in other materials
Sheet steel
0.1196"
Galvanized
0.1233"
Stainless
0.1250"
Galvanized and stainless use their own gauge series — the same gauge number is a different thickness in each. Reading a galvanized order off a plain steel chart is one of the most common ordering mistakes in the shop.
Next gauge up and down
Thicker — 10 gauge
0.1345"
12% thicker than 11 gauge
Thinner — 12 gauge
0.1046"
13% thinner than 11 gauge
Calculate a 11 gauge order
Gauge converter
Inches
0.1196"
Millimetres
3.04 mm
Weight
4.88 lb/ft²
Total
488 lb
Weight is calculated at 40.84 lb/ft² per inch of thickness. The Manufacturers' Standard Gauge quotes a nominal 5.00 lb/ft² for 11 gauge, based on a historical wrought-iron density — if a mill cert and your calculation disagree slightly, that is usually why.
Full gauge chart
| Gauge | Steel (in) | Steel (mm) | lb/ft² | Galvanized (in) | Stainless (in) |
|---|---|---|---|---|---|
| 3 ga | 0.2391 | 6.07 | 9.76 | — | 0.2500 |
| 4 ga | 0.2242 | 5.69 | 9.16 | — | 0.2344 |
| 5 ga | 0.2092 | 5.31 | 8.54 | — | 0.2187 |
| 6 ga | 0.1943 | 4.94 | 7.94 | — | 0.2031 |
| 7 ga | 0.1793 | 4.55 | 7.32 | — | 0.1875 |
| 8 ga | 0.1644 | 4.18 | 6.71 | 0.1681 | 0.1719 |
| 9 ga | 0.1495 | 3.80 | 6.11 | 0.1532 | 0.1562 |
| 10 ga | 0.1345 | 3.42 | 5.49 | 0.1382 | 0.1406 |
| 11 ga | 0.1196 | 3.04 | 4.88 | 0.1233 | 0.1250 |
| 12 ga | 0.1046 | 2.66 | 4.27 | 0.1084 | 0.1094 |
| 13 ga | 0.0897 | 2.28 | 3.66 | 0.0934 | 0.0937 |
| 14 ga | 0.0747 | 1.90 | 3.05 | 0.0785 | 0.0781 |
| 15 ga | 0.0673 | 1.71 | 2.75 | 0.0710 | 0.0703 |
| 16 ga | 0.0598 | 1.52 | 2.44 | 0.0635 | 0.0625 |
| 17 ga | 0.0538 | 1.37 | 2.20 | 0.0575 | 0.0562 |
| 18 ga | 0.0478 | 1.21 | 1.95 | 0.0516 | 0.0500 |
| 19 ga | 0.0418 | 1.06 | 1.71 | 0.0456 | 0.0437 |
| 20 ga | 0.0359 | 0.91 | 1.47 | 0.0396 | 0.0375 |
| 21 ga | 0.0329 | 0.84 | 1.34 | 0.0366 | 0.0344 |
| 22 ga | 0.0299 | 0.76 | 1.22 | 0.0336 | 0.0312 |
| 23 ga | 0.0269 | 0.68 | 1.10 | 0.0306 | 0.0281 |
| 24 ga | 0.0239 | 0.61 | 0.98 | 0.0276 | 0.0250 |
| 25 ga | 0.0209 | 0.53 | 0.85 | 0.0247 | 0.0219 |
| 26 ga | 0.0179 | 0.45 | 0.73 | 0.0217 | 0.0187 |
| 27 ga | 0.0164 | 0.42 | 0.67 | 0.0202 | 0.0172 |
| 28 ga | 0.0149 | 0.38 | 0.61 | 0.0187 | 0.0156 |