W16X100 Dimensions & Weight

W16X100 is an AISC wide-flange (W) shape with an actual depth of 17 in and a 10.43 in wide flange, weighing 100 lb per foot — a workhorse size for floor beams and roof framing on commercial jobs. It is the heaviest of the 11 W16 sizes listed here.

W16X100 Dimensions

Property	Imperial	Metric
Depth (d)	17 in	431.8 mm
Flange width (bf)	10.43 in	264.8 mm
Cross-section area (A)	29.4 in²	189.7 cm²
Weight	100 lb/ft	148.8 kg/m

What does W16X100 cost?

At an example material price of $0.92/lb, W16X100 runs about $92.00 per foot, or roughly $1,840 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 W16X100s off a drawing set by hand? SteelFlo finds every steel label on your PDF automatically — 3 takeoffs free.

Related sizes

W16X2626 lb/ft
W16X3131 lb/ft
W16X3636 lb/ft
W16X4040 lb/ft
W16X4545 lb/ft
W16X5050 lb/ft
W16X5757 lb/ft
W16X6767 lb/ft

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