Metal weight

Rectangular tube 100×80×12.5 mm weight

Steel Rectangular tube 100×80×12.5, cold-formed (EN 10219), weighs 25.15 kg/m. A 6 m bar weighs 150.9 kg and a 12 m bar 301.9 kg. The hot-finished version (EN 10210) has tighter corners and weighs 29.10 kg/m. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre25.15kg/m
6 m bar150.9kg
12 m bar301.9kg
Metres per tonne39.8m
Painting surface0.296m²/m
100 × 80 × 12.5 mm
Width × height
100 × 80 mm
Wall thickness
12.5 mm
Cold-formed, EN 10219
25.15 kg/m
Hot-finished, EN 10210
29.10 kg/m
Section area
32.04 cm²
Outer surface
0.296 m²/m
Outer surface
0.296 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m25.15 kg25.41 kg8.65 kg
2 m50.31 kg50.82 kg17.30 kg
3 m75.46 kg76.23 kg25.96 kg
4 m100.62 kg101.64 kg34.61 kg
5 m125.77 kg127.05 kg43.26 kg
6 m150.93 kg152.46 kg51.91 kg
8 m201.23 kg203.29 kg69.21 kg
10 m251.54 kg254.11 kg86.52 kg
12 m301.85 kg304.93 kg103.82 kg

How it was calculated

The weight is the section area multiplied by the material density:

kg/m = section area (mm²) × 0.00785, with the area calculated from width, height and thickness and the corners rounded per EN 10219 (cold-formed) or EN 10210 (hot-finished, outer radius 1.5t).

For Rectangular tube 100×80×12.5, the section area is 32.04 cm², so 1 metre = 32.04 × 0.785 = 25.154 kg.

The real weight can differ by a few percent because of rolling tolerances. For other materials or lengths use the calculator.

Other rectangular tube sizes

Rectangular tube 100×80×2Rectangular tube 100×80×2.5Rectangular tube 100×80×3Rectangular tube 100×80×4Rectangular tube 100×80×5Rectangular tube 100×80×6Rectangular tube 100×80×8Rectangular tube 100×80×10Rectangular tube 100×80×12.5Rectangular tube 120×80×12.5Rectangular tube 140×80×12.5Rectangular tube 150×100×12.5Rectangular tube 160×80×12.5Rectangular tube 180×100×12.5Rectangular tube 200×100×12.5Rectangular tube 200×120×12.5Rectangular tube 250×150×12.5Rectangular tube 300×200×12.5Full table →

Working out a whole order?

Add Rectangular tube 100×80×12.5 to the materials list and see the total weight and cost of the order, together with the other products.

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Frequently asked questions

How much does one metre of Rectangular tube 100×80×12.5 weigh?

One metre of steel Rectangular tube 100×80×12.5 weighs 25.15 kg.

How much does a 6 m bar of Rectangular tube 100×80×12.5 weigh?

A 6 m bar weighs 150.9 kg and a 12 m bar 301.9 kg.

How many metres of Rectangular tube 100×80×12.5 are in one tonne?

One tonne contains about 39.8 metres.