Steel Beam Sizes / AISC / W-Shapes / W40 / W40x149

W40x149 Steel Beam Dimensions and Properties

AISC Wide flange · v16.0

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

Units

Section diagram

W40x149 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 149.00 lb/ft 222.00 kg/m
Depth, d 38.20 in 970.00 mm
Flange width, bf 11.80 in 300.00 mm
tw 0.630 in 16.000 mm
tf 0.830 in 21.100 mm
Area 43.80 in² 28,300.00 mm²
Ix 9,800.00 in⁴ 4,080,000,000 mm⁴
Iy 229.00 in⁴ 95,300,000 mm⁴
Sx 513.00 in³ 8,410,000 mm³
Sy 38.80 in³ 636,000.00 mm³
Zx 598.00 in³ 9,800,000 mm³
Zy 62.20 in³ 1,020,000 mm³
rx 15.00 in 381.00 mm
ry 2.29 in 58.20 mm
J 9.36 in⁴ 3,900,000 mm⁴
Cw 80,000.00 in⁶ 21,500,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W40x149.

Browse W40 series →

Heavier in W40

W40x167

Weight
167.0 lb/ft (+12%)
Depth
38.60 in (+1.0%)
Ix
11,600.0 in⁴ (+18%)

Closest Iₓ in W40

W40x183

Weight
183.0 lb/ft (+23%)
Depth
39.00 in (+2.1%)
Ix
13,200.0 in⁴ (+35%)

Similar weight in W36

W36x150

Weight
150.0 lb/ft (+0.7%)
Depth
35.90 in (-6.0%)
Ix
9,040.0 in⁴ (-7.8%)
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Source: AISC Shapes Database v16.0 · Methodology