14 gauge steel thickness calculator
In the Manufacturers Standard Gauge for steel, 14 gauge is 0.0747 in (1.897 mm). The gauge number counts down as the sheet gets thicker.
Where the neutral axis sits, as a fraction of thickness. 0.33 for tight bends, 0.5 for generous ones.
- Thickness in inches
- 0.074 70
- Weight of the sheet
- 29.789
- Weight per square metre
- 14.894 kg/m2
- Weight per square foot
- 1.3837 kg/ft2
- Minimum inside bend radius One thickness is a safe general rule for mild steel; check the alloy.
- 1.897
- Bend allowance
- 4.232
- Bend deduction
- 3.357
- Suggested V-die opening Eight times thickness is the usual air-bending starting point.
- 15.18
Show the working
- Sheet length = 2000
- Sheet width = 1000
- Steel density = 7850
- Bend angle = 90
- K-factor = 0.42
- Thickness = 1.89738 = 1.897 38
- Thickness in inches = 1.897 38 / 25.4 = 0.0747
- area_m2 = 2000 * 1000 / 1e6 = 2
- volume_m3 = 2 * 1.897 38 / 1000 = 0.003 794 76
- Weight of the sheet = 0.003 794 76 * 7850 = 29.7889
- Weight per square metre = 1.897 38 / 1000 * 7850 = 14.8944
- Weight per square foot = 14.8944 * 0.09290304 = 1.383 74
- Minimum inside bend radius = 1.897 38 * 1 = 1.897 38
- Bend allowance = rad(90) * (1.897 38 + 0.42 * 1.897 38) = 4.232 16
- Bend deduction = 2 * (1.897 38 + 1.897 38) * tan(rad(90)/2) - 4.232 16 = 3.357 36
- Suggested V-die opening = 1.897 38 * 8 = 15.179
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- weight = length x width x thickness x density
- bend allowance = angle in radians x (inside radius + K x thickness)
- bend deduction = 2 x (inside radius + thickness) x tan(angle/2) - bend allowance
Gauge numbers are not a single standard. Steel, aluminium, stainless and zinc all use different gauge tables for the same number, so always state the material.
The Manufacturers Standard Gauge descends from a weight-per-square-foot table, which is why the thicknesses are not a neat progression.
Frequently asked
How thick is 14 gauge steel?
0.0747 inches, or 1.897 mm, for uncoated sheet steel.
Is a higher gauge number thicker?
No. The gauge number counts down as thickness goes up, so 16 gauge is thicker than 20 gauge.
Where the numbers come from
- Thicknesses are the Manufacturers Standard Gauge for uncoated hot- and cold-rolled sheet steel.