W24×103 vs W24×104
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W24×104 is the heavier section at 104 lb per foot, versus 103 for W24×103 (1 lb/ft more).
Both are nominally 24 in. deep.
W24×104 has the greater bending strength: section modulus Sx of 258 in³ versus 245, about 5% more.
| Property | W24×103 | W24×104 |
|---|---|---|
| Weight | 103 lb/ft | 104 lb/ft |
| Depth (d) | 24 1/2" | 24" |
| Flange width (bf) | 9" | 12 3/4" |
| Web thickness (tw) | 9/16" | 1/2" |
| Flange thickness (tf) | 1" | 3/4" |
| Area (A) | 30.3 in² | 30.7 in² |
| Moment of inertia (Ix) | 3000 in⁴ | 3100 in⁴ |
| Section modulus (Sx) | 245 in³ | 258 in³ |
| Plastic modulus (Zx) | 280 in³ | 289 in³ |
Open W24×103 in the interactive size chart →
Full detail: W24×103 · W24×104. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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