W12X87 Dimensions & Weight
W12X87 is an AISC wide-flange (W) shape with an actual depth of 12.53 in and a 12.13 in wide flange, weighing 87 lb per foot — a workhorse size for floor beams and roof framing on commercial jobs.
W12X87 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 12.53 in | 318.3 mm |
| Flange width (bf) | 12.13 in | 308 mm |
| Cross-section area (A) | 25.6 in² | 165.2 cm² |
| Weight | 87 lb/ft | 129.5 kg/m |
What does W12X87 cost?
At an example material price of $0.92/lb, W12X87 runs about $80.04 per foot, or roughly $1,601 for a 20-ft length.
Example pricing only. Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.
Counting W12X87s off a drawing set by hand? SteelFlo finds every steel label on your PDF automatically — 3 takeoffs free.
Related sizes
Deeper reading: Wide-Flange Beam Sizes: The Complete Guide · How to calculate steel weight