W16X31 Dimensions & Weight
W16X31 is an AISC wide-flange (W) shape with an actual depth of 15.88 in and a 5.53 in wide flange, weighing 31 lb per foot — a workhorse size for floor beams and roof framing on commercial jobs.
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Count every W16X31 on your drawing. Count W16X31 on your drawing. 3 free takeoffs, no card.
Start a free takeoffW16X31 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 15.88 in | 403.4 mm |
| Flange width (bf) | 5.53 in | 140.3 mm |
| Cross-section area (A) | 9.12 in² | 58.8 cm² |
| Weight | 31 lb/ft | 46.1 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does W16X31 weigh and cost?
W16X31 weighs 31 lb per foot. At an example material price of $0.92/lb that is about $28.52 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