W24x207 — Dimensions, Weight & Section Properties
American wide-flange (W) beam per ASTM A6 / AISC Steel Construction Manual
W24x207 is an American wide-flange beam 25.7 inches (652.8 mm) deep with a 13 in (330.2 mm) flange, weighing 207 pounds per foot (308.1 kg/m) — that is what the "207" 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 | 25.7 in (652.8 mm) |
| Flange width bf | 13 in (330.2 mm) |
| Web thickness tw | 0.87 in (22.1 mm) |
| Flange thickness tf | 1.57 in (39.9 mm) |
Weight & Cross-Section
| Weight per foot | 207 lb/ft (308.1 kg/m) |
| 20 ft bar | 4,140 lb |
| 40 ft bar | 8,280 lb |
| Area A | 60.7 in² (391.6 cm²) |
Section Properties (strong / weak axis)
| Moment of inertia Ix | 6,820 in⁴ (283,869 cm⁴) |
| Section modulus Sx | 531 in³ (8,701 cm³) |
| Radius of gyration rx | 10.6 in |
| Moment of inertia Iy | 578 in⁴ (24,058 cm⁴) |
| Section modulus Sy | 88.8 in³ (1,455 cm³) |
| Radius of gyration ry | 3.08 in |
Compared with the neighbouring sizes
| Shape | d × bf (in) | lb/ft | Ix (in⁴) | Sx (in³) | Δ weight | Δ Ix |
|---|---|---|---|---|---|---|
| W24x192 | 25.5 × 13 | 192 | 6,260 | 491 | −7 % | −8 % |
| W24x207 (this page) | 25.7 × 13 | 207 | 6,820 | 531 | — | — |
| W24x229 | 26 × 13.1 | 229 | 7,650 | 588 | +11 % | +12 % |
Deflection example
A simply supported W24x207 spanning 41 ft with a 10 kip point load at midspan deflects 0.13 in (E = 29,000 ksi, Ix = 6,820 in⁴). The L/360 serviceability limit for this span is 1.37 in — the shape passes this quick check.
Calculate with your own span and load →
Frequently asked questions
How much does a W24x207 beam weigh?
W24x207 weighs 207 pounds per foot (308.1 kg/m). The number after the "x" in the designation is always the weight in lb/ft. A 20 ft bar weighs 4,140 lb and a 40 ft bar 8,280 lb.
What are the dimensions of a W24x207?
W24x207 is 25.7 in (652.8 mm) deep with a 13 in (330.2 mm) wide flange. The web is 0.87 in thick and the flanges are 1.57 in thick. Note the actual depth differs from the nominal W24 label — always design with the actual value.
What are the dimensions of a W24x207 in mm?
W24x207 is 652.8 mm deep with a 330.2 mm wide flange; the web is 22.1 mm and the flange 39.9 mm thick. In metric section properties: Ix = 283,869 cm⁴, Sx = 8,701 cm³.
How much does a W24x207 weigh in kg?
308.1 kg per meter. A 6 m bar weighs 1,848 kg and a 12 m bar 3,697 kg — handy when ordering US shapes from metric suppliers.
What is the moment of inertia of a W24x207?
About the strong axis, Ix = 6,820 in⁴ (283,869 cm⁴) with section modulus Sx = 531 in³. About the weak axis, Iy = 578 in⁴ and Sy = 88.8 in³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
W24x207 or W24x229 — what does one size up change?
W24x229 is about 11% heavier (229 vs 207 lb/ft) but about 12% stiffer (Ix 7,650 vs 6,820 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