W21X275 Dimensions & Weight
W21X275 is an AISC wide-flange (W) shape with a cross-section area of 80.82 in², weighing 275 lb per foot — a heavy section you will mostly see in columns and transfer girders on larger structures. It is the heaviest of the 21 W21 sizes listed here.
W21X275 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Cross-section area (A)computed from weight and steel density | 80.82 in² | 521.4 cm² |
| Weight | 275 lb/ft | 409.2 kg/m |
What does W21X275 weigh and cost?
W21X275 weighs 275 lb per foot. At an example material price of $0.92/lb that is about $253.00 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