W30X391 Dimensions & Weight
W30X391 is an AISC wide-flange (W) shape with an actual depth of 33.2 in and a 15.59 in wide flange, weighing 391 lb per foot — a deep section used for girders, transfer beams, and long-span roof framing. It is the heaviest of the 16 W30 sizes listed here.
W30X391 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 33.2 in | 843.3 mm |
| Flange width (bf) | 15.59 in | 396 mm |
| Cross-section area (A) | 115 in² | 741.9 cm² |
| Weight | 391 lb/ft | 581.9 kg/m |
What does W30X391 weigh and cost?
W30X391 weighs 391 lb per foot. At an example material price of $0.92/lb that is about $359.72 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.
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Related sizes
Deeper reading: Wide-Flange Beam Sizes: The Complete Guide · How to calculate steel weight