W12X58 Dimensions & Weight

W12X58 is an AISC wide-flange (W) shape with an actual depth of 12.19 in and a 10.01 in wide flange, weighing 58 lb per foot — a common size for light floor framing, mezzanines, and residential beams.

W12X58 Dimensions

Property	Imperial	Metric
Depth (d)	12.19 in	309.6 mm
Flange width (bf)	10.01 in	254.3 mm
Cross-section area (A)	17 in²	109.7 cm²
Weight	58 lb/ft	86.3 kg/m

What does W12X58 cost?

At an example material price of $0.92/lb, W12X58 runs about $53.36 per foot, or roughly $1,067 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 W12X58s off a drawing set by hand? SteelFlo finds every steel label on your PDF automatically — 3 takeoffs free.

Related sizes

W12X1414 lb/ft
W12X1616 lb/ft
W12X1919 lb/ft
W12X2222 lb/ft
W12X2626 lb/ft
W12X3030 lb/ft
W12X3535 lb/ft
W12X4040 lb/ft

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