W18X158 Dimensions & Weight

W18X158 is an AISC wide-flange (W) shape with an actual depth of 19.72 in and a 11.28 in wide flange, weighing 158 lb per foot — a size you will see on longer floor spans and transfer framing.

W18X158 Dimensions

Property	Imperial	Metric
Depth (d)	19.72 in	500.9 mm
Flange width (bf)	11.28 in	286.4 mm
Cross-section area (A)	46.3 in²	298.7 cm²
Weight	158 lb/ft	235.1 kg/m

What does W18X158 cost?

At an example material price of $0.92/lb, W18X158 runs about $145 per foot, or roughly $2,907 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 W18X158s off a drawing set by hand? SteelFlo finds every steel label on your PDF automatically — 3 takeoffs free.

Related sizes

W18X3535 lb/ft
W18X4040 lb/ft
W18X4646 lb/ft
W18X5050 lb/ft
W18X5555 lb/ft
W18X6060 lb/ft
W18X6565 lb/ft
W18X7171 lb/ft

Deeper reading: Wide-Flange Beam Sizes: The Complete Guide · How to calculate steel weight