Steel Beam Sizes / AISC / W-Shapes / W12 / W12x79

W12x79 Steel Beam Dimensions and Properties

AISC Wide flange · v16.0

Analyze in Beam Calculator Back to W-Shapes All W12

Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

W12x79 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 79.00 lb/ft 117.00 kg/m
Depth, d 12.40 in 315.00 mm
Flange width, bf 12.10 in 307.00 mm
tw 0.470 in 11.900 mm
tf 0.735 in 18.700 mm
Area 23.20 in² 15,000.00 mm²
Ix 662.00 in⁴ 276,000,000 mm⁴
Iy 216.00 in⁴ 89,900,000 mm⁴
Sx 107.00 in³ 1,750,000 mm³
Sy 35.80 in³ 587,000.00 mm³
Zx 119.00 in³ 1,950,000 mm³
Zy 54.30 in³ 890,000.00 mm³
rx 5.34 in 136.00 mm
ry 3.05 in 77.50 mm
J 3.84 in⁴ 1,600,000 mm⁴
Cw 7,330.00 in⁶ 1,970,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W12x79.

Browse W12 series →

Lighter in W12

W12x72

Weight
72.0 lb/ft (-8.9%)
Depth
12.30 in (-0.8%)
Ix
597.0 in⁴ (-9.8%)

Heavier in W12

W12x87

Weight
87.0 lb/ft (+10%)
Depth
12.50 in (+0.8%)
Ix
740.0 in⁴ (+12%)

Closest Iₓ in W12

W12x65

Weight
65.0 lb/ft (-18%)
Depth
12.10 in (-2.4%)
Ix
533.0 in⁴ (-19%)

Similar weight in W10

W10x77

Weight
77.0 lb/ft (-2.5%)
Depth
10.60 in (-15%)
Ix
455.0 in⁴ (-31%)
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Source: AISC Shapes Database v16.0 · Methodology