Steel Beam Sizes / CISC / W-Shapes / W200×31

W200×31 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

W200×31 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 21.00 lb/ft 31.00 kg/m
Depth, d 8.27 in 210.00 mm
Flange width, bf 5.28 in 134.00 mm
tw 0.252 in 6.400 mm
tf 0.402 in 10.200 mm
Area 6.20 in² 4,000.00 mm²
Ix 75.44 in⁴ 31,400,000 mm⁴
Iy 9.85 in⁴ 4,100,000 mm⁴
Sx 18.25 in³ 299,000.00 mm³
Sy 3.73 in³ 61,100.00 mm³
Zx 20.44 in³ 335,000.00 mm³
Zy 5.72 in³ 93,800.00 mm³
rx 3.49 in 88.60 mm
ry 1.26 in 32.00 mm
J 0.29 in⁴ 119,000.00 mm⁴
Cw 152.31 in⁶ 40,900,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W200×31.

Lighter in W200

W200×27

Weight
27.0 kg/m (-14%)
Depth
207.0 mm (-1.4%)
Ix
25,800,000 mm⁴ (-18%)

Heavier in W200

W200×36

Weight
36.0 kg/m (+14%)
Depth
201.0 mm (-4.3%)
Ix
34,400,000 mm⁴ (+9.6%)

Closest Iₓ in W200

W200×42

Weight
42.0 kg/m (+33%)
Depth
205.0 mm (-2.4%)
Ix
40,900,000 mm⁴ (+30%)

Similar weight in W250

W250×33

Weight
33.0 kg/m (+4.8%)
Depth
258.0 mm (+23%)
Ix
48,900,000 mm⁴ (+56%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Imported; readily available in Canada. · Methodology