W8X21 Dimensions & Weight
W8X21 is an AISC wide-flange (W) shape with an actual depth of 8.28 in and a 5.27 in wide flange, weighing 21 lb per foot — a shallow section typical for lintels, stub columns, and light residential framing.
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Count every W8X21 on your drawing. Count W8X21 on your drawing. 3 free takeoffs, no card.
Start a free takeoffW8X21 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 8.28 in | 210.3 mm |
| Flange width (bf) | 5.27 in | 133.9 mm |
| Cross-section area (A) | 6.16 in² | 39.7 cm² |
| Weight | 21 lb/ft | 31.3 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does W8X21 weigh and cost?
W8X21 weighs 21 lb per foot. At an example material price of $0.92/lb that is about $19.32 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