W30×90 wide-flange beam
Detailing dimensions and section properties from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.
W30×90 measures 29 1/2 in. deep with a 10 3/8 in. flange, on a 1/2 in. web and 5/8 in. flanges.
At 90 lb per foot it is the lightest of the 16 W30 sizes, which run from 90 to 391 lb/ft.
For strong-axis bending its section modulus is Sx = 245 in³ and its moment of inertia Ix = 3610 in⁴, with a plastic modulus Zx = 283 in³.
Detailing dimensions
| Depth (d) | 29 1/2" |
|---|---|
| Flange width (bf) | 10 3/8" |
| Web thickness (tw) | 1/2" |
| Flange thickness (tf) | 5/8" |
| k (detailing) | 1 7/8" |
| Workable gage (g) | 5 1/2" |
Section properties
| Weight | 90 lb/ft |
|---|---|
| Area (A) | 26.3 in² |
| Ix | 3610 in⁴ |
| Sx | 245 in³ |
| Zx | 283 in³ |
| rx | 11.7 in |
| Iy | 115 in⁴ |
| Sy | 22.1 in³ |
| Zy | 34.7 in³ |
| ry | 2.09 in |
| J | 2.84 in⁴ |
Other W30 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All W30 sizes and dimensions →
Similar weight wide-flange beams
Comparable 90 lb/ft sections in other wide-flange beam sizes.
Compare W30×90 with a nearby size
Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need W30×90 cut, formed, or fabricated? Huntington Steel & Supply Co.
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