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Metal weight

Square tube 100×100×12.5 mm weight

Steel Square tube 100×100×12.5, cold-formed (EN 10219), weighs 29.08 kg/m. A 6 m bar weighs 174.5 kg and a 12 m bar 349.0 kg. The hot-finished version (EN 10210) has tighter corners and weighs 33.03 kg/m. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre29.08kg/m
6 m bar174.5kg
12 m bar349.0kg
Metres per tonne34.4m
Painting surface0.336m²/m
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100 × 100 × 12.5 mm
Side
100 mm
Wall thickness
12.5 mm
Cold-formed, EN 10219
29.08 kg/m
Hot-finished, EN 10210
33.03 kg/m
Section area
37.04 cm²
Outer surface
0.336 m²/m
Outer surface
0.336 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m29.08 kg29.38 kg10.00 kg
2 m58.16 kg58.75 kg20.00 kg
3 m87.24 kg88.13 kg30.01 kg
4 m116.32 kg117.50 kg40.01 kg
5 m145.40 kg146.88 kg50.01 kg
6 m174.48 kg176.25 kg60.01 kg
8 m232.63 kg235.01 kg80.01 kg
10 m290.79 kg293.76 kg100.02 kg
12 m348.95 kg352.51 kg120.02 kg

How it was calculated

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

kg/m = section area (mm²) × 0.00785. The area comes from side and thickness, minus the rounded corners: for cold-formed tube (EN 10219) the outer radius is 2t up to 6 mm wall, 2.5t up to 10 mm and 3t above; for hot-finished tube (EN 10210) the outer radius is 1.5t.

For Square tube 100×100×12.5, the section area is 37.04 cm², so 1 metre = 37.04 × 0.785 = 29.079 kg.

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

Other square tube sizes

Square tube 100×100×2Square tube 100×100×2.5Square tube 100×100×3Square tube 100×100×4Square tube 100×100×5Square tube 100×100×6Square tube 100×100×8Square tube 100×100×10Square tube 100×100×12.5Square tube 90×90×12.5Square tube 120×120×12.5Square tube 140×140×12.5Square tube 150×150×12.5Square tube 160×160×12.5Square tube 180×180×12.5Square tube 200×200×12.5Square tube 250×250×12.5Square tube 300×300×12.5Full table →

Working out a whole order?

Add Square tube 100×100×12.5 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 Square tube 100×100×12.5 weigh?

One metre of steel Square tube 100×100×12.5 weighs 29.08 kg.

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

A 6 m bar weighs 174.5 kg and a 12 m bar 349.0 kg.

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

One tonne contains about 34.4 metres.