356x171x45 UB Dimensions & Weight
356x171x45 UB is a BS EN 10365 universal beam with an actual depth of 351.4 mm and a 171.1 mm flange, weighing 45 kg per metre (30.24 lb/ft) — commonly used for floor beams and roof framing. It is the lightest of the 4 356x171 UB sizes listed here.
356x171x45 UB Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (d) | 351.4 mm | 13.835 in |
| Flange width (b) | 171.1 mm | 6.736 in |
| Web thickness (tw) | 7 mm | 0.276 in |
| Flange thickness (tf) | 9.7 mm | 0.382 in |
| Cross-section area (A)computed from weight and steel density | 57.3 cm² | 8.88 in² |
| Mass | 45 kg/m | 30.24 lb/ft |
Standard: BS EN 10365. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does 356x171x45 UB weigh and cost?
356x171x45 UB has a mass of 45 kg per metre. At an example material price of 2.00 per kg (in your currency) that is about 90.00 per metre. Set your quantity, length, and price to total your own run:
Material only, example pricing (same currency as the price you enter). Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.
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Related sizes
Deeper reading: UK UB & UC Sizes Chart · How to calculate steel weight