RHS 300x100x12.5 Dimensions & Weight

RHS 300x100x12.5 is a rectangular hollow section to EN 10210 / EN 10219, 300 x 100 mm outside with a 12.5 mm wall, weighing 68.3 kg per metre (45.9 lb/ft) — commonly specified for heavier columns and brace members.

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RHS 300x100x12.5 Dimensions

PropertyMetricImperial
Outside depth300 mm11.811 in
Outside width100 mm3.937 in
Wall thickness12.5 mm0.492 in
Cross-section area (A)computed from weight and steel density87 cm²13.49 in²
Mass68.3 kg/m45.9 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 300x100x12.5 weigh and cost?

RHS 300x100x12.5 has a mass of 68.3 kg per metre. At an example material price of 2.00 per kg (in your currency) that is about 136.60 per metre. Set your quantity, length, and price to total your own run:

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Total weight
410 kg
Material cost
819.60

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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Tallying by hand?

Free steel takeoff template (Excel) with EN 10210 / EN 10219 sections built in

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Stop counting RHS 300x100x12.5s by hand.

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