Steel Beam Sizes / AISC / W-Shapes / W16 / W16x45

W16x45 Steel Beam Dimensions and Properties

AISC Wide flange · v16.0

Analyze in Beam Calculator Back to W-Shapes All W16

Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

W16x45 dimensions

Not to scale. Dimensions shown for reference.

Section properties

Symbols match the steel section finder. Imperial and metric values are shown side by side.

Property Imperial Metric
Weight 45.00 lb/ft 67.00 kg/m
Depth, d 16.10 in 409.00 mm
Flange width, bf 7.04 in 179.00 mm
tw 0.345 in 8.760 mm
tf 0.565 in 14.400 mm
Area 13.30 in² 8,580.00 mm²
Ix 586.00 in⁴ 244,000,000 mm⁴
Iy 32.80 in⁴ 13,700,000 mm⁴
Sx 72.70 in³ 1,190,000 mm³
Sy 9.34 in³ 153,000.00 mm³
Zx 82.30 in³ 1,350,000 mm³
Zy 14.50 in³ 238,000.00 mm³
rx 6.65 in 169.00 mm
ry 1.57 in 39.90 mm
J 1.11 in⁴ 462,000.00 mm⁴
Cw 1,990.00 in⁶ 534,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W16x45.

Browse W16 series →

Lighter in W16

W16x40

Weight
40.0 lb/ft (-11%)
Depth
16.00 in (-0.6%)
Ix
518.0 in⁴ (-12%)

Heavier in W16

W16x50

Weight
50.0 lb/ft (+11%)
Depth
16.30 in (+1.2%)
Ix
659.0 in⁴ (+12%)

Closest Iₓ in W16

W16x36

Weight
36.0 lb/ft (-20%)
Depth
15.90 in (-1.2%)
Ix
448.0 in⁴ (-24%)

Similar weight in W18

W18x46

Weight
46.0 lb/ft (+2.2%)
Depth
18.10 in (+12%)
Ix
712.0 in⁴ (+22%)
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Source: AISC Shapes Database v16.0 · Methodology