W24×279 vs W24×306
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W24×306 is the heavier section at 306 lb per foot, versus 279 for W24×279 (27 lb/ft more).
Both are nominally 24 in. deep.
W24×306 has the greater bending strength: section modulus Sx of 789 in³ versus 718, about 10% more.
| Property | W24×279 | W24×306 |
|---|---|---|
| Weight | 279 lb/ft | 306 lb/ft |
| Depth (d) | 26 3/4" | 27 1/8" |
| Flange width (bf) | 13 1/4" | 13 3/8" |
| Web thickness (tw) | 1 3/16" | 1 1/4" |
| Flange thickness (tf) | 2 1/16" | 2 1/4" |
| Area (A) | 81.9 in² | 89.7 in² |
| Moment of inertia (Ix) | 9600 in⁴ | 10700 in⁴ |
| Section modulus (Sx) | 718 in³ | 789 in³ |
| Plastic modulus (Zx) | 835 in³ | 922 in³ |
Open W24×279 in the interactive size chart →
Full detail: W24×279 · W24×306. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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