UPN 400 Dimensions & Weight
UPN 400 is an EN 10365 taper-flange UPN channel with a nominal depth of 400 mm, weighing 71.8 kg per metre (48.25 lb/ft) — commonly used for stair stringers, lintels, trimmers, and edge framing. It is the heaviest of the 18 UPN sizes listed here.
UPN 400 Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Nominal depthfrom the designation | 400 mm | 15.748 in |
| Cross-section area (A)computed from weight and steel density | 91.5 cm² | 14.18 in² |
| Mass | 71.8 kg/m | 48.25 lb/ft |
Standard: EN 10365. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does UPN 400 weigh and cost?
UPN 400 has a mass of 71.8 kg per metre. At an example material price of 2.00 per kg (in your currency) that is about 143.60 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: European Steel Sections Guide · How to calculate steel weight