W24x229 — Dimensions, Weight & Section Properties
American wide-flange (W) beam per ASTM A6 / AISC Steel Construction Manual
W24x229 is an American wide-flange beam 26 inches (660.4 mm) deep with a 13.1 in (332.7 mm) flange, weighing 229 pounds per foot (340.8 kg/m) — that is what the "229" in the designation means. All values below are the standard AISC published section properties used in US structural design, with metric equivalents alongside.
Typical uses: floor and roof framing, columns, headers, and general steel construction. For a quick stiffness check, see the deflection example below or open the beam calculator with your own span and load.
Dimensions
| Depth d | 26 in (660.4 mm) |
| Flange width bf | 13.1 in (332.7 mm) |
| Web thickness tw | 0.96 in (24.4 mm) |
| Flange thickness tf | 1.73 in (43.9 mm) |
Weight & Cross-Section
| Weight per foot | 229 lb/ft (340.8 kg/m) |
| 20 ft bar | 4,580 lb |
| 40 ft bar | 9,160 lb |
| Area A | 67.2 in² (433.5 cm²) |
Section Properties (strong / weak axis)
| Moment of inertia Ix | 7,650 in⁴ (318,416 cm⁴) |
| Section modulus Sx | 588 in³ (9,636 cm³) |
| Radius of gyration rx | 10.7 in |
| Moment of inertia Iy | 651 in⁴ (27,097 cm⁴) |
| Section modulus Sy | 99.4 in³ (1,629 cm³) |
| Radius of gyration ry | 3.11 in |
Compared with the neighbouring sizes
| Shape | d × bf (in) | lb/ft | Ix (in⁴) | Sx (in³) | Δ weight | Δ Ix |
|---|---|---|---|---|---|---|
| W24x207 | 25.7 × 13 | 207 | 6,820 | 531 | −10 % | −11 % |
| W24x229 (this page) | 26 × 13.1 | 229 | 7,650 | 588 | — | — |
| W24x250 | 26.3 × 13.2 | 250 | 8,490 | 644 | +9 % | +11 % |
Deflection example
A simply supported W24x229 spanning 42 ft with a 10 kip point load at midspan deflects 0.12 in (E = 29,000 ksi, Ix = 7,650 in⁴). The L/360 serviceability limit for this span is 1.4 in — the shape passes this quick check.
Calculate with your own span and load →
Frequently asked questions
How much does a W24x229 beam weigh?
W24x229 weighs 229 pounds per foot (340.8 kg/m). The number after the "x" in the designation is always the weight in lb/ft. A 20 ft bar weighs 4,580 lb and a 40 ft bar 9,160 lb.
What are the dimensions of a W24x229?
W24x229 is 26 in (660.4 mm) deep with a 13.1 in (332.7 mm) wide flange. The web is 0.96 in thick and the flanges are 1.73 in thick. Note the actual depth differs from the nominal W24 label — always design with the actual value.
What are the dimensions of a W24x229 in mm?
W24x229 is 660.4 mm deep with a 332.7 mm wide flange; the web is 24.4 mm and the flange 43.9 mm thick. In metric section properties: Ix = 318,416 cm⁴, Sx = 9,636 cm³.
How much does a W24x229 weigh in kg?
340.8 kg per meter. A 6 m bar weighs 2,045 kg and a 12 m bar 4,090 kg — handy when ordering US shapes from metric suppliers.
What is the moment of inertia of a W24x229?
About the strong axis, Ix = 7,650 in⁴ (318,416 cm⁴) with section modulus Sx = 588 in³. About the weak axis, Iy = 651 in⁴ and Sy = 99.4 in³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
W24x229 or W24x250 — what does one size up change?
W24x250 is about 9% heavier (250 vs 229 lb/ft) but about 11% stiffer (Ix 8,490 vs 7,650 in⁴). Going one step up within the same depth group is usually the cheapest way to cut deflection.
Values are entered from the governing standard’s published tables and cross-checked programmatically against its mass and section formulas before publication. Spotted an error? Write to advertising@metalabout.net — verified corrections ship within days. About