Steel Beam Sizes / CISC / WT Tees / WT125×40
WT125×40 Dimensions, Weight and Section Properties
CISC Structural tees · v12.1
WT125×40: 128 mm depth, 255 mm flange width, 40 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
WT125×40 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 | 27.00 lb/ft | 40.00 kg/m |
| Depth, d | 5.04 in | 128.00 mm |
| Flange width, bf | 10.04 in | 255.00 mm |
| tw | 0.370 in | 9.400 mm |
| tf | 0.614 in | 15.600 mm |
| Area | 7.91 in² | 5,100.00 mm² |
| Ix | 11.08 in⁴ | 4,610,000 mm⁴ |
| Iy | 51.89 in⁴ | 21,600,000 mm⁴ |
| Sx | 2.64 in³ | 43,200.00 mm³ |
| Sy | 10.31 in³ | 169,000.00 mm³ |
| rx | 1.19 in | 30.10 mm |
| ry | 2.56 in | 65.00 mm |
| J | 0.91 in⁴ | 377,000.00 mm⁴ |
| Cw | 1.78 in⁶ | 477,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus WT125×40.
Lighter in WT125
WT125×36.5
- Weight
- 36.5 kg/m (-9.3%)
- Depth
- 127.0 mm (-0.8%)
- Ix
- 4,170,000 mm⁴ (-9.5%)
Heavier in WT125
WT125×44.5
- Weight
- 44.5 kg/m (+11%)
- Depth
- 130.0 mm (+1.6%)
- Ix
- 5,390,000 mm⁴ (+17%)
Another Iₓ option in WT125
WT125×33.5
- Weight
- 33.5 kg/m (-17%)
- Depth
- 129.0 mm (+0.8%)
- Ix
- 4,340,000 mm⁴ (-5.9%)
Similar weight in WT155
WT155×39.5
- Weight
- 39.5 kg/m (-1.9%)
- Depth
- 153.0 mm (+20%)
- Ix
- 7,380,000 mm⁴ (+60%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Imported; readily available in Canada. · Methodology