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.
Count every W21X275 on your drawing — upload a PDF, get the member list. 3 free takeoffs, no card.
Count every W21X275 on your drawing. Count W21X275 on your drawing. 3 free takeoffs, no card.
Start a free takeoffW21X275 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Nominal depthfrom the designation | 21 in | 533.4 mm |
| Cross-section area (A)computed from weight and steel density | 80.82 in² | 521.4 cm² |
| Weight | 275 lb/ft | 409.2 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
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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Deeper reading: Wide-Flange Beam Sizes: The Complete Guide · How to calculate steel weight