Steel Beam Sizes / CISC / W-Shapes / W920×390

W920×390 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

W920×390 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 262.00 lb/ft 390.00 kg/m
Depth, d 36.85 in 936.00 mm
Flange width, bf 16.54 in 420.00 mm
tw 0.839 in 21.300 mm
tf 1.441 in 36.600 mm
Area 76.57 in² 49,400.00 mm²
Ix 17,826.62 in⁴ 7,420,000,000 mm⁴
Iy 1,088.34 in⁴ 453,000,000 mm⁴
Sx 964.18 in³ 15,800,000 mm³
Sy 131.81 in³ 2,160,000 mm³
Zx 1,092.33 in³ 17,900,000 mm³
Zy 203.21 in³ 3,330,000 mm³
rx 15.24 in 387.00 mm
ry 3.77 in 95.70 mm
J 40.60 in⁴ 16,900,000 mm⁴
Cw 340,736.61 in⁶ 91,500,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W920×390.

Lighter in W920

W920×381

Weight
381.0 kg/m (-2.3%)
Depth
951.0 mm (+1.6%)
Ix
6,960,000,000 mm⁴ (-6.2%)

Heavier in W920

W920×420

Weight
420.0 kg/m (+7.6%)
Depth
943.0 mm (+0.7%)
Ix
8,130,000,000 mm⁴ (+9.6%)

Closest Iₓ in W920

W920×425

Weight
425.0 kg/m (+9.2%)
Depth
961.0 mm (+2.7%)
Ix
7,880,000,000 mm⁴ (+6.2%)

Similar weight in W840

W840×392

Weight
392.0 kg/m (+0.4%)
Depth
877.0 mm (-6.3%)
Ix
6,600,000,000 mm⁴ (-11%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Not produced in Canada. · Methodology