Steel Beam Sizes / AISC / W-Shapes / W40 / W40x324

W40x324 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

W40x324 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 324.00 lb/ft 483.00 kg/m
Depth, d 40.20 in 1,020.00 mm
Flange width, bf 15.90 in 404.00 mm
tw 1.000 in 25.400 mm
tf 1.810 in 46.000 mm
Area 95.30 in² 61,500.00 mm²
Ix 25,600.00 in⁴ 10,700,000,000 mm⁴
Iy 1,220.00 in⁴ 508,000,000 mm⁴
Sx 1,280.00 in³ 21,000,000 mm³
Sy 153.00 in³ 2,510,000 mm³
Zx 1,460.00 in³ 23,900,000 mm³
Zy 239.00 in³ 3,920,000 mm³
rx 16.40 in 417.00 mm
ry 3.58 in 90.90 mm
J 79.40 in⁴ 33,000,000 mm⁴
Cw 448,000.00 in⁶ 120,000,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W40x324.

Browse W40 series →

Lighter in W40

W40x297

Weight
297.0 lb/ft (-8.3%)
Depth
39.80 in (-1.0%)
Ix
23,200.0 in⁴ (-9.4%)

Heavier in W40

W40x327

Weight
327.0 lb/ft (+0.9%)
Depth
40.80 in (+1.5%)
Ix
24,500.0 in⁴ (-4.3%)

Closest Iₓ in W40

W40x331

Weight
331.0 lb/ft (+2.2%)
Depth
40.80 in (+1.5%)
Ix
24,700.0 in⁴ (-3.5%)

Similar weight in W36

W36x318

Weight
318.0 lb/ft (-1.9%)
Depth
38.20 in (-5.0%)
Ix
21,200.0 in⁴ (-17%)
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Source: AISC Shapes Database v16.0 · Methodology