W40X331 Dimensions & Weight
W40X331 is an AISC wide-flange (W) shape with an actual depth of 40.08 in and a 12.2 in wide flange, weighing 331 lb per foot — a deep section used for girders, transfer beams, and long-span roof framing.
W40X331 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 40.08 in | 1,018 mm |
| Flange width (bf) | 12.2 in | 309.9 mm |
| Cross-section area (A) | 97.4 in² | 628.4 cm² |
| Weight | 331 lb/ft | 492.6 kg/m |
What does W40X331 cost?
At an example material price of $0.92/lb, W40X331 runs about $305 per foot, or roughly $6,090 for a 20-ft length.
Example pricing only. Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.
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Related sizes
Deeper reading: Wide-Flange Beam Sizes: The Complete Guide · How to calculate steel weight