W21X48 Dimensions & Weight
W21X48 is an AISC wide-flange (W) shape with an actual depth of 20.57 in and a 8.14 in wide flange, weighing 48 lb per foot — a size you will see on longer floor spans and transfer framing.
Count every W21X48 on your drawing — upload a PDF, get the member list. 3 free takeoffs, no card.
Count every W21X48 on your drawing. Count W21X48 on your drawing. 3 free takeoffs, no card.
Start a free takeoffW21X48 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 20.57 in | 522.5 mm |
| Flange width (bf) | 8.14 in | 206.8 mm |
| Cross-section area (A) | 14.1 in² | 91 cm² |
| Weight | 48 lb/ft | 71.4 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does W21X48 weigh and cost?
W21X48 weighs 48 lb per foot. At an example material price of $0.92/lb that is about $44.16 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