Metal weight

Square tube 100×100×8 mm weight

Steel Square tube 100×100×8, cold-formed (EN 10219), weighs 21.39 kg/m. A 6 m bar weighs 128.3 kg and a 12 m bar 256.6 kg. The hot-finished version (EN 10210) has tighter corners and weighs 22.57 kg/m. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre21.39kg/m
6 m bar128.3kg
12 m bar256.6kg
Metres per tonne46.8m
Painting surface0.366m²/m
100 × 100 × 8 mm
Side
100 mm
Wall thickness
8 mm
Cold-formed, EN 10219
21.39 kg/m
Hot-finished, EN 10210
22.57 kg/m
Section area
27.24 cm²
Outer surface
0.366 m²/m
Outer surface
0.366 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m21.39 kg21.60 kg7.36 kg
2 m42.77 kg43.21 kg14.71 kg
3 m64.16 kg64.81 kg22.07 kg
4 m85.54 kg86.41 kg29.42 kg
5 m106.93 kg108.02 kg36.78 kg
6 m128.31 kg129.62 kg44.13 kg
8 m171.08 kg172.83 kg58.84 kg
10 m213.85 kg216.03 kg73.55 kg
12 m256.62 kg259.24 kg88.27 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 100×100×8, the section area is 27.24 cm², so 1 metre = 27.24 × 0.785 = 21.385 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 60×60×8Square tube 70×70×8Square tube 80×80×8Square tube 90×90×8Square tube 120×120×8Square tube 140×140×8Square tube 150×150×8Square tube 160×160×8Square tube 180×180×8Square tube 200×200×8Square tube 250×250×8Square tube 300×300×8Full table →

Working out a whole order?

Add Square tube 100×100×8 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 100×100×8 weigh?

One metre of steel Square tube 100×100×8 weighs 21.39 kg.

How much does a 6 m bar of Square tube 100×100×8 weigh?

A 6 m bar weighs 128.3 kg and a 12 m bar 256.6 kg.

How many metres of Square tube 100×100×8 are in one tonne?

One tonne contains about 46.8 metres.