W18×211 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.
W18×211 measures 20 5/8 in. deep with a 11 1/2 in. flange, on a 1 1/16 in. web and 1 15/16 in. flanges.
At 211 lb per foot it is one of the 23 W18 sizes, which run from 35 to 311 lb/ft.
For strong-axis bending its section modulus is Sx = 419 in³ and its moment of inertia Ix = 4330 in⁴, with a plastic modulus Zx = 490 in³.
Detailing dimensions
| Depth (d) | 20 5/8" |
|---|---|
| Flange width (bf) | 11 1/2" |
| Web thickness (tw) | 1 1/16" |
| Flange thickness (tf) | 1 15/16" |
| k (detailing) | 2 13/16" |
| Workable gage (g) | 5 1/2" |
Section properties
| Weight | 211 lb/ft |
|---|---|
| Area (A) | 62.3 in² |
| Ix | 4330 in⁴ |
| Sx | 419 in³ |
| Zx | 490 in³ |
| rx | 8.35 in |
| Iy | 493 in⁴ |
| Sy | 85.3 in³ |
| Zy | 132 in³ |
| ry | 2.82 in |
| J | 58.6 in⁴ |
Other W18 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All W18 sizes and dimensions →
Similar weight wide-flange beams
Comparable 211 lb/ft sections in other wide-flange beam sizes.
Compare W18×211 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 W18×211 cut, formed, or fabricated? Huntington Steel & Supply Co.
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