W18X258 Dimensions & Weight
W18X258 is an AISC wide-flange (W) shape with an actual depth of 21.46 in and a 11.77 in wide flange, weighing 258 lb per foot — a size you will see on longer floor spans and transfer framing.
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Count every W18X258 on your drawing. Count W18X258 on your drawing. 3 free takeoffs, no card.
Start a free takeoffW18X258 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 21.46 in | 545.1 mm |
| Flange width (bf) | 11.77 in | 299 mm |
| Cross-section area (A) | 75.9 in² | 489.7 cm² |
| Weight | 258 lb/ft | 383.9 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does W18X258 weigh and cost?
W18X258 weighs 258 lb per foot. At an example material price of $0.92/lb that is about $237.36 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