W12X30 Dimensions & Weight
W12X30 is an AISC wide-flange (W) shape with an actual depth of 12.34 in and a 6.52 in wide flange, weighing 30 lb per foot — a common size for light floor framing, mezzanines, and residential beams.
W12X30 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 12.34 in | 313.4 mm |
| Flange width (bf) | 6.52 in | 165.6 mm |
| Cross-section area (A) | 8.79 in² | 56.7 cm² |
| Weight | 30 lb/ft | 44.6 kg/m |
What does W12X30 cost?
At an example material price of $0.92/lb, W12X30 runs about $27.60 per foot, or roughly $552 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 W12X30s 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