RHS 180x80x4 Dimensions & Weight
RHS 180x80x4 is a rectangular hollow section to EN 10210 / EN 10219, 180 x 80 mm outside with a 4 mm wall, weighing 15.5 kg per metre (10.42 lb/ft) — commonly specified for columns, braces, and exposed architectural steel. It is the lightest of the 5 RHS 180x80 sizes listed here.
Free. Needs a free Steelflo account (also includes 3 free takeoffs, no card).
or start a free takeoff to count RHS 180x80x4 on your drawing.
Free takeoff template in Excel. Takeoff template in Excel. Free with a Steelflo account.
RHS 180x80x4 Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Outside depth | 180 mm | 7.087 in |
| Outside width | 80 mm | 3.15 in |
| Wall thickness | 4 mm | 0.157 in |
| Cross-section area (A)computed from weight and steel density | 19.7 cm² | 3.05 in² |
| Mass | 15.5 kg/m | 10.42 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 180x80x4 weigh and cost?
RHS 180x80x4 has a mass of 15.5 kg per metre. At an example material price of 2.00 per kg (in your currency) that is about 31.00 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 →
Tallying by hand?
Free. Needs a free Steelflo account (also includes 3 free takeoffs, no card).
Stop counting RHS 180x80x4s by hand.
Upload your drawing set and SteelFlo puts a box on each steel label it finds, including RHS 180x80x4, ready to review and export as a bill of materials.
Related sizes
- RHS 180x80x519.1 kg/m
- RHS 180x80x622.6 kg/m
- RHS 180x80x828.9 kg/m
- RHS 180x80x1035 kg/m
- RHS 120x60x615.1 kg/m
- RHS 140x80x516 kg/m
- RHS 150x100x414.9 kg/m
- RHS 120x60x6.316.2 kg/m
Comparing sizes? Keep them all in one sheet.
Free. Needs a free Steelflo account (also includes 3 free takeoffs, no card).
Found your size? Now count it on the drawing.
Upload your PDF and SteelFlo boxes the steel labels it finds, so you get a member list instead of a manual tally of RHS 180x80x4 and its neighbors.
Deeper reading: UK UB & UC Sizes Chart · How to calculate steel weight