Steel Beam Sizes / AISC / WT Tees / WT3x4.5

WT3x4.5 Steel Beam Dimensions and Properties

AISC Structural tees · v16.0

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

Units

Section diagram

WT3x4.5 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 4.50 lb/ft 6.75 kg/m
Depth, d 2.95 in 74.90 mm
Flange width, bf 3.94 in 100.00 mm
tw 0.170 in 4.320 mm
tf 0.215 in 5.460 mm
Area 1.34 in² 865.00 mm²
Ix 0.95 in⁴ 395,000.00 mm⁴
Iy 1.10 in⁴ 458,000.00 mm⁴
Sx 0.41 in³ 6,690.00 mm³
Sy 0.56 in³ 9,130.00 mm³
Zx 0.72 in³ 11,800.00 mm³
Zy 0.86 in³ 14,000.00 mm³
rx 0.84 in 21.40 mm
ry 0.91 in 23.00 mm
J 0.02 in⁴ 8,410.00 mm⁴
Cw 0.01 in⁶ 1,980,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT3x4.5.

Lighter in WT3

WT3x4.25

Weight
4.3 lb/ft (-5.6%)
Depth
2.92 in (-1.0%)
Ix
0.9 in⁴ (-4.7%)

Heavier in WT3

WT3x6

Weight
6.0 lb/ft (+33%)
Depth
3.02 in (+2.4%)
Ix
1.3 in⁴ (+39%)

Closest Iₓ in WT3

WT3x7.5

Weight
7.5 lb/ft (+67%)
Depth
3.00 in (+1.7%)
Ix
1.4 in⁴ (+48%)

Similar weight in WT4

WT4x5

Weight
5.0 lb/ft (+11%)
Depth
3.95 in (+34%)
Ix
2.2 in⁴ (+126%)
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Source: AISC Shapes Database v16.0 · Methodology