Steel Beam Sizes / CISC / Channels / C100×8
C100×8 Steel Beam Dimensions and Properties
CISC Channels · v12.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
C100×8 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 | 5.40 lb/ft | 8.00 kg/m |
| Depth, d | 4.02 in | 102.00 mm |
| Flange width, bf | 1.57 in | 40.00 mm |
| tw | 0.185 in | 4.700 mm |
| tf | 0.295 in | 7.500 mm |
| Area | 1.58 in² | 1,020.00 mm² |
| Ix | 3.87 in⁴ | 1,610,000 mm⁴ |
| Iy | 0.32 in⁴ | 132,000.00 mm⁴ |
| Sx | 1.93 in³ | 31,600.00 mm³ |
| Sy | 0.28 in³ | 4,650.00 mm³ |
| rx | 1.56 in | 39.70 mm |
| ry | 0.45 in | 11.40 mm |
| J | 0.04 in⁴ | 16,600.00 mm⁴ |
| Cw | 0.92 in⁶ | 246,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus C100×8.
Lighter in C100
C100×7
- Weight
- 7.0 kg/m (-17%)
- Depth
- 102.0 mm (0.0%)
- Ix
- 1,500,000 mm⁴ (-6.8%)
Heavier in C100
C100×9
- Weight
- 9.0 kg/m (+16%)
- Depth
- 102.0 mm (0.0%)
- Ix
- 1,770,000 mm⁴ (+9.9%)
Closest Iₓ in C100
C100×11
- Weight
- 11.0 kg/m (+34%)
- Depth
- 102.0 mm (0.0%)
- Ix
- 1,910,000 mm⁴ (+19%)
Similar weight in C75
C75×7
- Weight
- 7.0 kg/m (-7.4%)
- Depth
- 76.0 mm (-25%)
- Ix
- 749,000 mm⁴ (-53%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · Methodology