RHS 450x250x12 Dimensions & Weight
RHS 450x250x12 is a rectangular hollow section to EN 10210 / EN 10219, 450 x 250 mm outside with a 12 mm wall, weighing 123 kg per metre (82.65 lb/ft) — commonly specified for heavier columns and brace members.
RHS 450x250x12 Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Outside depth | 450 mm | 17.717 in |
| Outside width | 250 mm | 9.843 in |
| Wall thickness | 12 mm | 0.472 in |
| Cross-section area (A)computed from weight and steel density | 156.7 cm² | 24.29 in² |
| Mass | 123 kg/m | 82.65 lb/ft |
Standard: EN 10210 / EN 10219. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does RHS 450x250x12 weigh and cost?
RHS 450x250x12 has a mass of 123 kg per metre. At an example material price of 2.00 per kg (in your currency) that is about 246.00 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.
Pricing more than one size? Build a full member list in the free calculator →
Stop counting RHS 450x250x12s by hand.
Upload your drawing set and SteelFlo puts a box on every steel label it finds — every RHS 450x250x12, on every page — ready to review and export as a bill of materials.
Related sizes
Deeper reading: UK UB & UC Sizes Chart · How to calculate steel weight