W12X305 Dimensions & Weight

W12X305 is an AISC wide-flange (W) shape with an actual depth of 16.32 in and a 13.24 in wide flange, weighing 305 lb per foot — a workhorse size for floor beams and roof framing on commercial jobs.

W12X305 Dimensions

Property	Imperial	Metric
Depth (d)	16.32 in	414.5 mm
Flange width (bf)	13.24 in	336.2 mm
Cross-section area (A)	89.6 in²	578.1 cm²
Weight	305 lb/ft	453.9 kg/m

What does W12X305 cost?

At an example material price of $0.92/lb, W12X305 runs about $281 per foot, or roughly $5,612 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 W12X305s 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