W8X18 Dimensions & Weight
W8X18 is an AISC wide-flange (W) shape with an actual depth of 8.14 in and a 5.25 in wide flange, weighing 18 lb per foot — a shallow section typical for lintels, stub columns, and light residential framing.
W8X18 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 8.14 in | 206.8 mm |
| Flange width (bf) | 5.25 in | 133.4 mm |
| Cross-section area (A) | 5.26 in² | 33.9 cm² |
| Weight | 18 lb/ft | 26.8 kg/m |
What does W8X18 cost?
At an example material price of $0.92/lb, W8X18 runs about $16.56 per foot, or roughly $331 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 W8X18s 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