Steel Beam Sizes / AISC / WT Tees / WT9x79

WT9x79 Steel Beam Dimensions and Properties

AISC Structural tees · v16.0

Analyze in Beam Calculator Back to WT Tees

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

Units

Section diagram

WT9x79 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 118.00 kg/m
Depth, d 9.86 in 250.00 mm
Flange width, bf 11.30 in 287.00 mm
tw 0.810 in 20.600 mm
tf 1.440 in 36.600 mm
Area 23.20 in² 15,000.00 mm²
Ix 160.00 in⁴ 66,600,000 mm⁴
Iy 174.00 in⁴ 72,400,000 mm⁴
Sx 20.80 in³ 341,000.00 mm³
Sy 30.70 in³ 503,000.00 mm³
Zx 38.50 in³ 631,000.00 mm³
Zy 47.40 in³ 777,000.00 mm³
rx 2.63 in 66.80 mm
ry 2.74 in 69.60 mm
J 12.50 in⁴ 5,200,000 mm⁴
Cw 41.20 in⁶ 11,100,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT9x79.

Lighter in WT9

WT9x71.5

Weight
71.5 lb/ft (-9.5%)
Depth
9.75 in (-1.1%)
Ix
142.0 in⁴ (-11%)

Heavier in WT9

WT9x87.5

Weight
87.5 lb/ft (+11%)
Depth
10.00 in (+1.4%)
Ix
181.0 in⁴ (+13%)

Closest Iₓ in WT9

WT9x65

Weight
65.0 lb/ft (-18%)
Depth
9.63 in (-2.3%)
Ix
127.0 in⁴ (-21%)

Similar weight in WT10

WT10.5x83

Weight
83.0 lb/ft (+5.1%)
Depth
11.20 in (+14%)
Ix
226.0 in⁴ (+41%)
Analyze in Beam Calculator Compare in WT Tees finder

Source: AISC Shapes Database v16.0 · Methodology