Steel Beam Sizes / AISC / WT Tees / WT18x326
WT18x326 Dimensions, Weight and Section Properties
AISC Structural tees · v16.0
WT18x326: 20.5 in depth, 17.6 in flange width, 326 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
WT18x326 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 | 326.00 lb/ft | 485.00 kg/m |
| Depth, d | 20.50 in | 521.00 mm |
| Flange width, bf | 17.60 in | 447.00 mm |
| tw | 1.970 in | 50.000 mm |
| tf | 3.540 in | 89.900 mm |
| Area | 96.20 in² | 62,100.00 mm² |
| Ix | 3,160.00 in⁴ | 1,320,000,000 mm⁴ |
| Iy | 1,610.00 in⁴ | 670,000,000 mm⁴ |
| Sx | 208.00 in³ | 3,410,000 mm³ |
| Sy | 184.00 in³ | 3,020,000 mm³ |
| Zx | 383.00 in³ | 6,280,000 mm³ |
| Zy | 290.00 in³ | 4,750,000 mm³ |
| rx | 5.74 in | 146.00 mm |
| ry | 4.10 in | 104.00 mm |
| J | 295.00 in⁴ | 123,000,000 mm⁴ |
| Cw | 3,070.00 in⁶ | 824,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus WT18x326.
Lighter in WT18
WT18x264.5
- Weight
- 264.5 lb/ft (-19%)
- Depth
- 19.90 in (-2.9%)
- Ix
- 2,440.0 in⁴ (-23%)
Heavier in WT18
WT18x361.5
- Weight
- 361.5 lb/ft (+11%)
- Depth
- 20.90 in (+2.0%)
- Ix
- 3,610.0 in⁴ (+14%)
Another Iₓ option in WT18
WT18x243.5
- Weight
- 243.5 lb/ft (-25%)
- Depth
- 19.70 in (-3.9%)
- Ix
- 2,220.0 in⁴ (-30%)
Similar weight in WT20
WT20x327.5
- Weight
- 327.5 lb/ft (+0.5%)
- Depth
- 21.80 in (+6.3%)
- Ix
- 3,730.0 in⁴ (+18%)
Source: AISC Shapes Database v16.0 · Methodology