W18×60 vs W18×65
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W18×65 is the heavier section at 65 lb per foot, versus 60 for W18×60 (5 lb/ft more).
Both are nominally 18 in. deep.
W18×65 has the greater bending strength: section modulus Sx of 117 in³ versus 108, about 8% more.
| Property | W18×60 | W18×65 |
|---|---|---|
| Weight | 60 lb/ft | 65 lb/ft |
| Depth (d) | 18 1/4" | 18 3/8" |
| Flange width (bf) | 7 1/2" | 7 5/8" |
| Web thickness (tw) | 7/16" | 7/16" |
| Flange thickness (tf) | 11/16" | 3/4" |
| Area (A) | 17.6 in² | 19.1 in² |
| Moment of inertia (Ix) | 984 in⁴ | 1070 in⁴ |
| Section modulus (Sx) | 108 in³ | 117 in³ |
| Plastic modulus (Zx) | 123 in³ | 133 in³ |
Open W18×60 in the interactive size chart →
Full detail: W18×60 · W18×65. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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