Steel Beam Sizes / AISC / W-Shapes / W12 / W12x305

W12x305 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

W12x305 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 305.00 lb/ft 454.00 kg/m
Depth, d 16.30 in 414.00 mm
Flange width, bf 13.20 in 335.00 mm
tw 1.630 in 41.400 mm
tf 2.710 in 68.800 mm
Area 89.50 in² 57,700.00 mm²
Ix 3,550.00 in⁴ 1,480,000,000 mm⁴
Iy 1,050.00 in⁴ 437,000,000 mm⁴
Sx 435.00 in³ 7,130,000 mm³
Sy 159.00 in³ 2,610,000 mm³
Zx 537.00 in³ 8,800,000 mm³
Zy 244.00 in³ 4,000,000 mm³
rx 6.29 in 160.00 mm
ry 3.42 in 86.90 mm
J 185.00 in⁴ 77,000,000 mm⁴
Cw 48,600.00 in⁶ 13,100,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W12x305.

Browse W12 series →

Lighter in W12

W12x279

Weight
279.0 lb/ft (-8.5%)
Depth
15.90 in (-2.5%)
Ix
3,110.0 in⁴ (-12%)

Heavier in W12

W12x336

Weight
336.0 lb/ft (+10%)
Depth
16.80 in (+3.1%)
Ix
4,060.0 in⁴ (+14%)

Closest Iₓ in W12

W12x252

Weight
252.0 lb/ft (-17%)
Depth
15.40 in (-5.5%)
Ix
2,720.0 in⁴ (-23%)

Similar weight in W14

W14x311

Weight
311.0 lb/ft (+2.0%)
Depth
17.10 in (+4.9%)
Ix
4,330.0 in⁴ (+22%)
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Source: AISC Shapes Database v16.0 · Methodology