W10x33 is a wide flange steel beam that is 9.73 in deep with a 7.96 in flange and weighs 33 lb/ft (49.1 kg/m). Its metric designation is W250x49.1. All values below come from the AISC Shapes Database v16.0.
W10x33 Dimensions
| Property | Symbol | Imperial | Metric |
|---|---|---|---|
| Nominal weight | W | 33 lb/ft | 49.1 kg/m |
| Cross-sectional area | A | 9.71 in² | 6,260 mm² |
| Depth | d | 9.73 in | 247 mm |
| Flange width | bf | 7.96 in | 202 mm |
| Web thickness | tw | 0.29 in | 7.37 mm |
| Flange thickness | tf | 0.435 in | 11 mm |
| Distance to web toe of fillet (design) | kdes | 0.935 in | 23.7 mm |
| Distance to web toe of fillet (detailing) | kdet | 1.125 in | 28.6 mm |
| Web center line to flange toe of fillet | k1 | 0.75 in | 19.1 mm |
| Distance between web toes of fillets | T | 7.5 in | 191 mm |
| Workable gage (inner holes) | WGi | 5.5 in | 140 mm |
W10x33 Section Properties
| Property | Symbol | Imperial | Metric |
|---|---|---|---|
| Moment of inertia, x-axis | Ix | 171 in⁴ | 71.2 ×10⁶ mm⁴ |
| Elastic section modulus, x-axis | Sx | 35 in³ | 574 ×10³ mm³ |
| Plastic section modulus, x-axis | Zx | 38.8 in³ | 636 ×10³ mm³ |
| Radius of gyration, x-axis | rx | 4.19 in | 106 mm |
| Moment of inertia, y-axis | Iy | 36.6 in⁴ | 15.2 ×10⁶ mm⁴ |
| Elastic section modulus, y-axis | Sy | 9.2 in³ | 151 ×10³ mm³ |
| Plastic section modulus, y-axis | Zy | 14 in³ | 229 ×10³ mm³ |
| Radius of gyration, y-axis | ry | 1.94 in | 49.3 mm |
| Torsional constant | J | 0.583 in⁴ | 243 ×10³ mm⁴ |
| Warping constant | Cw | 791 in⁶ | 212 ×10⁹ mm⁶ |
| Effective radius of gyration | rts | 2.2 in | 55.9 mm |
| Distance between flange centroids | ho | 9.3 in | 236 mm |
| Flange slenderness | bf/2tf | 9.15 | 9.15 |
| Web slenderness | h/tw | 27.1 | 27.1 |
W10x33 Weight Calculator
Enter a length to get the total weight of a W10x33 beam. A 20 ft length weighs 660 lb.
Uses the AISC nominal weight: 33 lb/ft (49.1 kg/m).
Beams Similar to W10x33
See every W10 size in the W10 beam sizes chart, or compare all shapes in the wide flange beam sizes chart.
W10x33 FAQ
What does W10x33 mean?
W means wide flange. The first number (10) is the nominal depth in inches, and the second number (33) is the weight in pounds per foot. The actual depth of W10x33 is 9.73 in. How to read steel beam sizes.
How much does a W10x33 beam weigh?
W10x33 weighs 33 lb per foot (49.1 kg per meter). A 20 ft beam weighs about 660 lb. Use the calculator above for any length.
What is the metric equivalent of W10x33?
The metric (SI) designation is W250x49.1: 247 mm deep with a 202 mm flange and 49.1 kg/m.
How far can a W10x33 beam span?
Span depends on the load, support conditions, deflection limits and local building code, so it cannot be read from a size table. A licensed structural engineer must size any beam that carries a load.
Source: AISC Shapes Database v16.0, consistent with the AISC Steel Construction Manual, 16th Edition. Last updated: September 2026.
This page is reference information only and is not engineering advice. Do not use it for a specific design without verification by a licensed engineer or architect. Full disclaimer.