Steel Beam Sizes / AISC / WT Tees / WT20x124.5
WT20x124.5 Dimensions, Weight and Section Properties
AISC Structural tees · v16.0
WT20x124.5: 19.7 in depth, 15.8 in flange width, 124.5 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
WT20x124.5 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 | 124.50 lb/ft | 186.00 kg/m |
| Depth, d | 19.70 in | 500.00 mm |
| Flange width, bf | 15.80 in | 401.00 mm |
| tw | 0.750 in | 19.100 mm |
| tf | 1.420 in | 36.100 mm |
| Area | 36.70 in² | 23,700.00 mm² |
| Ix | 1,210.00 in⁴ | 504,000,000 mm⁴ |
| Iy | 463.00 in⁴ | 193,000,000 mm⁴ |
| Sx | 79.40 in³ | 1,300,000 mm³ |
| Sy | 58.80 in³ | 964,000.00 mm³ |
| Zx | 140.00 in³ | 2,290,000 mm³ |
| Zy | 90.80 in³ | 1,490,000 mm³ |
| rx | 5.75 in | 146.00 mm |
| ry | 3.55 in | 90.20 mm |
| J | 19.00 in⁴ | 7,910,000 mm⁴ |
| Cw | 158.00 in⁶ | 42,400,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus WT20x124.5.
Lighter in WT20
WT20x117.5
- Weight
- 117.5 lb/ft (-5.6%)
- Depth
- 19.80 in (+0.5%)
- Ix
- 1,260.0 in⁴ (+4.1%)
Heavier in WT20
WT20x132
- Weight
- 132.0 lb/ft (+6.0%)
- Depth
- 20.00 in (+1.5%)
- Ix
- 1,450.0 in⁴ (+20%)
Another Iₓ option in WT20
WT20x105.5
- Weight
- 105.5 lb/ft (-15%)
- Depth
- 19.70 in (0.0%)
- Ix
- 1,120.0 in⁴ (-7.4%)
Similar weight in WT18
WT18x123.5
- Weight
- 123.5 lb/ft (-0.8%)
- Depth
- 18.30 in (-7.1%)
- Ix
- 1,040.0 in⁴ (-14%)
Source: AISC Shapes Database v16.0 · Methodology