RHS 350x150x12.5 Dimensions & Weight

RHS 350x150x12.5 is a rectangular hollow section to EN 10210 / EN 10219, 350 x 150 mm outside with a 12.5 mm wall, weighing 91.9 kg per metre (61.75 lb/ft) — commonly specified for heavier columns and brace members.

RHS 350x150x12.5 Dimensions

PropertyMetricImperial
Outside depth350 mm13.78 in
Outside width150 mm5.906 in
Wall thickness12.5 mm0.492 in
Cross-section area (A)computed from weight and steel density117.1 cm²18.15 in²
Mass91.9 kg/m61.75 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 350x150x12.5 weigh and cost?

RHS 350x150x12.5 has a mass of 91.9 kg per metre. At an example material price of 2.00 per kg (in your currency) that is about 183.80 per metre. Set your quantity, length, and price to total your own run:

Total weight
551 kg
Material cost
1,102.80

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 350x150x12.5s by hand.

Upload your drawing set and SteelFlo puts a box on every steel label it finds — every RHS 350x150x12.5, on every page — ready to review and export as a bill of materials.

3 free takeoffsNo credit card requiredAISC + 5 international standards