W12X279 Dimensions & Weight
W12X279 is an AISC wide-flange (W) shape with an actual depth of 15.85 in and a 13.14 in wide flange, weighing 279 lb per foot — a workhorse size for floor beams and roof framing on commercial jobs.
W12X279 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 15.85 in | 402.6 mm |
| Flange width (bf) | 13.14 in | 333.8 mm |
| Cross-section area (A) | 82 in² | 529 cm² |
| Weight | 279 lb/ft | 415.2 kg/m |
What does W12X279 cost?
At an example material price of $0.92/lb, W12X279 runs about $257 per foot, or roughly $5,134 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 W12X279s 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