Edge Weld Size Calculator

Calculate edge weld size, throat, and capacity for edge joints and flanged butt joints per AWS D1.1

Input Parameters

Results

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Max Weld Size
in
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Effective Throat
in
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Allowable Load
lb
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Load per Inch
lb/in
Note: Edge welds are primarily used for light-gauge material and non-structural connections. AWS D1.1 limits edge welds to plate thickness 1/4 in max for loaded joints. Flange height should be at least 2x plate thickness.

Reference

Edge Weld per AWS D1.1: Max weld size = lesser of plate thickness or flange height Effective throat = 0.707 x weld size Allowable shear = 0.30 x FEXX x throat x length Edge welds limited to plate thickness <= 1/4 in for primary members Flange height must extend above weld