Steel Beam Sizes / AISC / W-Shapes / W18 / W18x106

W18x106 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

W18x106 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 106.00 lb/ft 158.00 kg/m
Depth, d 18.70 in 475.00 mm
Flange width, bf 11.20 in 284.00 mm
tw 0.590 in 15.000 mm
tf 0.940 in 23.900 mm
Area 31.10 in² 20,100.00 mm²
Ix 1,910.00 in⁴ 795,000,000 mm⁴
Iy 220.00 in⁴ 91,600,000 mm⁴
Sx 204.00 in³ 3,340,000 mm³
Sy 39.40 in³ 646,000.00 mm³
Zx 230.00 in³ 3,770,000 mm³
Zy 60.50 in³ 991,000.00 mm³
rx 7.84 in 199.00 mm
ry 2.66 in 67.60 mm
J 7.48 in⁴ 3,110,000 mm⁴
Cw 17,400.00 in⁶ 4,670,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W18x106.

Browse W18 series →

Lighter in W18

W18x97

Weight
97.0 lb/ft (-8.5%)
Depth
18.60 in (-0.5%)
Ix
1,750.0 in⁴ (-8.4%)

Heavier in W18

W18x119

Weight
119.0 lb/ft (+12%)
Depth
19.00 in (+1.6%)
Ix
2,190.0 in⁴ (+15%)

Closest Iₓ in W18

W18x86

Weight
86.0 lb/ft (-19%)
Depth
18.40 in (-1.6%)
Ix
1,530.0 in⁴ (-20%)

Similar weight in W21

W21x101

Weight
101.0 lb/ft (-4.7%)
Depth
21.40 in (+14%)
Ix
2,420.0 in⁴ (+27%)
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Source: AISC Shapes Database v16.0 · Methodology