W40×215 vs W40×235
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W40×235 is the heavier section at 235 lb per foot, versus 215 for W40×215 (20 lb/ft more).
Both are nominally 40 in. deep.
W40×235 has the greater bending strength: section modulus Sx of 875 in³ versus 859, about 2% more.
| Property | W40×215 | W40×235 |
|---|---|---|
| Weight | 215 lb/ft | 235 lb/ft |
| Depth (d) | 39" | 39 3/4" |
| Flange width (bf) | 15 3/4" | 11 7/8" |
| Web thickness (tw) | 5/8" | 13/16" |
| Flange thickness (tf) | 1 1/4" | 1 9/16" |
| Area (A) | 63.5 in² | 69.1 in² |
| Moment of inertia (Ix) | 16700 in⁴ | 17400 in⁴ |
| Section modulus (Sx) | 859 in³ | 875 in³ |
| Plastic modulus (Zx) | 964 in³ | 1010 in³ |
Open W40×215 in the interactive size chart →
Full detail: W40×215 · W40×235. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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