RHS 450x250x8 Dimensions & Weight

RHS 450x250x8 is a rectangular hollow section to EN 10210 / EN 10219, 450 x 250 mm outside with a 8 mm wall, weighing 85.4 kg per metre (57.39 lb/ft) — commonly specified for heavier columns and brace members. It is the lightest of the 6 RHS 450x250 sizes listed here.

RHS 450x250x8 Dimensions

PropertyMetricImperial
Outside depth450 mm17.717 in
Outside width250 mm9.843 in
Wall thickness8 mm0.315 in
Cross-section area (A)computed from weight and steel density108.8 cm²16.86 in²
Mass85.4 kg/m57.39 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 450x250x8 weigh and cost?

RHS 450x250x8 has a mass of 85.4 kg per metre. At an example material price of 2.00 per kg (in your currency) that is about 170.80 per metre. Set your quantity, length, and price to total your own run:

Total weight
512 kg
Material cost
1,024.80

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 450x250x8s by hand.

Upload your drawing set and SteelFlo puts a box on every steel label it finds — every RHS 450x250x8, on every page — ready to review and export as a bill of materials.

3 free takeoffsNo credit card requiredAISC + 5 international standards