Steel Beam Sizes / CISC / W-Shapes / W840×359

W840×359 Steel Beam Dimensions and Properties

CISC Wide flange · v12.1

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

Units

Section diagram

W840×359 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 241.00 lb/ft 359.00 kg/m
Depth, d 34.17 in 868.00 mm
Flange width, bf 15.87 in 403.00 mm
tw 0.831 in 21.100 mm
tf 1.402 in 35.600 mm
Area 70.99 in² 45,800.00 mm²
Ix 14,222.86 in⁴ 5,920,000,000 mm⁴
Iy 934.58 in⁴ 389,000,000 mm⁴
Sx 829.92 in³ 13,600,000 mm³
Sy 117.78 in³ 1,930,000 mm³
Zx 939.77 in³ 15,400,000 mm³
Zy 181.85 in³ 2,980,000 mm³
rx 14.13 in 359.00 mm
ry 3.63 in 92.10 mm
J 36.28 in⁴ 15,100,000 mm⁴
Cw 250,990.68 in⁶ 67,400,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W840×359.

Lighter in W840

W840×329

Weight
329.0 kg/m (-8.3%)
Depth
862.0 mm (-0.7%)
Ix
5,360,000,000 mm⁴ (-9.5%)

Heavier in W840

W840×392

Weight
392.0 kg/m (+9.1%)
Depth
877.0 mm (+1.0%)
Ix
6,600,000,000 mm⁴ (+11%)

Closest Iₓ in W840

W840×299

Weight
299.0 kg/m (-17%)
Depth
855.0 mm (-1.5%)
Ix
4,800,000,000 mm⁴ (-19%)

Similar weight in W920

W920×368

Weight
368.0 kg/m (+2.5%)
Depth
931.0 mm (+7.3%)
Ix
6,920,000,000 mm⁴ (+17%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Not produced in Canada. · Methodology