W30×108 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.
W30×108 measures 29 7/8 in. deep with a 10 1/2 in. flange, on a 9/16 in. web and 3/4 in. flanges.
At 108 lb per foot it is one of the 16 W30 sizes, which run from 90 to 391 lb/ft.
For strong-axis bending its section modulus is Sx = 299 in³ and its moment of inertia Ix = 4470 in⁴, with a plastic modulus Zx = 346 in³.
Detailing dimensions
| Depth (d) | 29 7/8" |
|---|---|
| Flange width (bf) | 10 1/2" |
| Web thickness (tw) | 9/16" |
| Flange thickness (tf) | 3/4" |
| k (detailing) | 2" |
| Workable gage (g) | 5 1/2" |
Section properties
| Weight | 108 lb/ft |
|---|---|
| Area (A) | 31.7 in² |
| Ix | 4470 in⁴ |
| Sx | 299 in³ |
| Zx | 346 in³ |
| rx | 11.9 in |
| Iy | 146 in⁴ |
| Sy | 27.9 in³ |
| Zy | 43.9 in³ |
| ry | 2.15 in |
| J | 4.99 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 108 lb/ft sections in other wide-flange beam sizes.
Compare W30×108 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 W30×108 cut, formed, or fabricated? Huntington Steel & Supply Co.
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