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 weigh and cost?
W40X331 weighs 331 lb per foot. At an example material price of $0.92/lb that is about $304.52 per foot. Set your quantity, length, and price to total your own run:
Material only, example pricing. Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.
Pricing more than one size? Build a full member list in the free calculator →
Stop counting W40X331s by hand.
Upload your drawing set and SteelFlo puts a box on every steel label it finds — every W40X331, on every page — ready to review and export as a bill of materials.
Related sizes
Deeper reading: Wide-Flange Beam Sizes: The Complete Guide · How to calculate steel weight