W14x455 — Dimensions, Weight & Section Properties
American wide-flange (W) beam per ASTM A6 / AISC Steel Construction Manual
W14x455 is an American wide-flange beam 19 inches (482.6 mm) deep with a 16.8 in (426.7 mm) flange, weighing 455 pounds per foot (677.1 kg/m) — that is what the "455" 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 | 19 in (482.6 mm) |
| Flange width bf | 16.8 in (426.7 mm) |
| Web thickness tw | 2.02 in (51.3 mm) |
| Flange thickness tf | 3.21 in (81.5 mm) |
Weight & Cross-Section
| Weight per foot | 455 lb/ft (677.1 kg/m) |
| 20 ft bar | 9,100 lb |
| 40 ft bar | 18,200 lb |
| Area A | 134 in² (864.5 cm²) |
Section Properties (strong / weak axis)
| Moment of inertia Ix | 7,190 in⁴ (299,269 cm⁴) |
| Section modulus Sx | 756 in³ (12,389 cm³) |
| Radius of gyration rx | 7.33 in |
| Moment of inertia Iy | 2,560 in⁴ (106,555 cm⁴) |
| Section modulus Sy | 304 in³ (4,982 cm³) |
| Radius of gyration ry | 4.38 in |
Compared with the neighbouring sizes
| Shape | d × bf (in) | lb/ft | Ix (in⁴) | Sx (in³) | Δ weight | Δ Ix |
|---|---|---|---|---|---|---|
| W14x426 | 18.7 × 16.7 | 426 | 6,600 | 706 | −6 % | −8 % |
| W14x455 (this page) | 19 × 16.8 | 455 | 7,190 | 756 | — | — |
| W14x500 | 19.6 × 17 | 500 | 8,210 | 838 | +10 % | +14 % |
Deflection example
A simply supported W14x455 spanning 30 ft with a 10 kip point load at midspan deflects 0.05 in (E = 29,000 ksi, Ix = 7,190 in⁴). The L/360 serviceability limit for this span is 1 in — the shape passes this quick check.
Calculate with your own span and load →
Frequently asked questions
How much does a W14x455 beam weigh?
W14x455 weighs 455 pounds per foot (677.1 kg/m). The number after the "x" in the designation is always the weight in lb/ft. A 20 ft bar weighs 9,100 lb and a 40 ft bar 18,200 lb.
What are the dimensions of a W14x455?
W14x455 is 19 in (482.6 mm) deep with a 16.8 in (426.7 mm) wide flange. The web is 2.02 in thick and the flanges are 3.21 in thick. Note the actual depth differs from the nominal W14 label — always design with the actual value.
What are the dimensions of a W14x455 in mm?
W14x455 is 482.6 mm deep with a 426.7 mm wide flange; the web is 51.3 mm and the flange 81.5 mm thick. In metric section properties: Ix = 299,269 cm⁴, Sx = 12,389 cm³.
How much does a W14x455 weigh in kg?
677.1 kg per meter. A 6 m bar weighs 4,063 kg and a 12 m bar 8,126 kg — handy when ordering US shapes from metric suppliers.
What is the moment of inertia of a W14x455?
About the strong axis, Ix = 7,190 in⁴ (299,269 cm⁴) with section modulus Sx = 756 in³. About the weak axis, Iy = 2,560 in⁴ and Sy = 304 in³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
W14x455 or W14x500 — what does one size up change?
W14x500 is about 10% heavier (500 vs 455 lb/ft) but about 14% stiffer (Ix 8,210 vs 7,190 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