Steel Beam Sizes / AISC / W-Shapes / W12 / W12x279

W12x279 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

W12x279 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 279.00 lb/ft 415.00 kg/m
Depth, d 15.90 in 404.00 mm
Flange width, bf 13.10 in 333.00 mm
tw 1.530 in 38.900 mm
tf 2.470 in 62.700 mm
Area 81.90 in² 52,800.00 mm²
Ix 3,110.00 in⁴ 1,290,000,000 mm⁴
Iy 937.00 in⁴ 390,000,000 mm⁴
Sx 393.00 in³ 6,440,000 mm³
Sy 143.00 in³ 2,340,000 mm³
Zx 481.00 in³ 7,880,000 mm³
Zy 220.00 in³ 3,610,000 mm³
rx 6.16 in 156.00 mm
ry 3.38 in 85.90 mm
J 143.00 in⁴ 59,500,000 mm⁴
Cw 42,000.00 in⁶ 11,300,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W12x279.

Browse W12 series →

Lighter in W12

W12x252

Weight
252.0 lb/ft (-9.7%)
Depth
15.40 in (-3.1%)
Ix
2,720.0 in⁴ (-13%)

Heavier in W12

W12x305

Weight
305.0 lb/ft (+9.3%)
Depth
16.30 in (+2.5%)
Ix
3,550.0 in⁴ (+14%)

Closest Iₓ in W12

W12x230

Weight
230.0 lb/ft (-18%)
Depth
15.10 in (-5.0%)
Ix
2,420.0 in⁴ (-22%)

Similar weight in W14

W14x283

Weight
283.0 lb/ft (+1.4%)
Depth
16.70 in (+5.0%)
Ix
3,840.0 in⁴ (+23%)
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Source: AISC Shapes Database v16.0 · Methodology