W14x730 — Dimensions, Weight & Section Properties
American wide-flange (W) beam per ASTM A6 / AISC Steel Construction Manual
W14x730 is an American wide-flange beam 22.4 inches (569 mm) deep with a 17.9 in (454.7 mm) flange, weighing 730 pounds per foot (1,086.4 kg/m) — that is what the "730" 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 | 22.4 in (569 mm) |
| Flange width bf | 17.9 in (454.7 mm) |
| Web thickness tw | 3.07 in (78 mm) |
| Flange thickness tf | 4.91 in (124.7 mm) |
Weight & Cross-Section
| Weight per foot | 730 lb/ft (1,086.4 kg/m) |
| 20 ft bar | 14,600 lb |
| 40 ft bar | 29,200 lb |
| Area A | 215 in² (1,387.1 cm²) |
Section Properties (strong / weak axis)
| Moment of inertia Ix | 14,300 in⁴ (595,209 cm⁴) |
| Section modulus Sx | 1,280 in³ (20,975 cm³) |
| Radius of gyration rx | 8.17 in |
| Moment of inertia Iy | 4,720 in⁴ (196,461 cm⁴) |
| Section modulus Sy | 527 in³ (8,636 cm³) |
| Radius of gyration ry | 4.69 in |
Compared with the neighbouring sizes
| Shape | d × bf (in) | lb/ft | Ix (in⁴) | Sx (in³) | Δ weight | Δ Ix |
|---|---|---|---|---|---|---|
| W14x665 | 21.6 × 17.7 | 665 | 12,400 | 1,150 | −9 % | −13 % |
| W14x730 (this page) | 22.4 × 17.9 | 730 | 14,300 | 1,280 | — | — |
Deflection example
A simply supported W14x730 spanning 36 ft with a 10 kip point load at midspan deflects 0.04 in (E = 29,000 ksi, Ix = 14,300 in⁴). The L/360 serviceability limit for this span is 1.2 in — the shape passes this quick check.
Calculate with your own span and load →
Frequently asked questions
How much does a W14x730 beam weigh?
W14x730 weighs 730 pounds per foot (1,086.4 kg/m). The number after the "x" in the designation is always the weight in lb/ft. A 20 ft bar weighs 14,600 lb and a 40 ft bar 29,200 lb.
What are the dimensions of a W14x730?
W14x730 is 22.4 in (569 mm) deep with a 17.9 in (454.7 mm) wide flange. The web is 3.07 in thick and the flanges are 4.91 in thick. Note the actual depth differs from the nominal W14 label — always design with the actual value.
What are the dimensions of a W14x730 in mm?
W14x730 is 569 mm deep with a 454.7 mm wide flange; the web is 78 mm and the flange 124.7 mm thick. In metric section properties: Ix = 595,209 cm⁴, Sx = 20,975 cm³.
How much does a W14x730 weigh in kg?
1,086.4 kg per meter. A 6 m bar weighs 6,518 kg and a 12 m bar 13,037 kg — handy when ordering US shapes from metric suppliers.
What is the moment of inertia of a W14x730?
About the strong axis, Ix = 14,300 in⁴ (595,209 cm⁴) with section modulus Sx = 1,280 in³. About the weak axis, Iy = 4,720 in⁴ and Sy = 527 in³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
W14x730 or W14x665 — what does one size down change?
W14x665 is about 9% lighter (665 vs 730 lb/ft) but about 13% less stiff (Ix 12,400 vs 14,300 in⁴). Check deflection before downsizing — stiffness falls much faster than weight.
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