Galvanized Steel Tube 40x40mm Square 2.0mm

This 40 × 40 mm square galvanized steel tube pairs a 2.0 mm wall with a Z180 hot-dip zinc coating, delivering a rigid, corrosion-resistant section for outdoor fabrications. It is a dependable choice for frames, gates, railings, racking and structural details where square profiles keep the design clean and assembly straightforward.

The 40 × 40 × 2.0 mm section offers noticeably more stiffness than lighter walls, so it suits gate posts, machine frames, solar mounting structures and balustrade frames that carry modest loads outdoors. The hot-dip zinc layer resists rain, condensation and mild chemical exposure, and the tube can be cut, drilled and welded with standard workshop equipment.

For other square or rectangular sizes, thicker walls or larger coating weights, explore our complete galvanized steel tube range or send us your drawing and we will confirm supply options.

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Related Reading

Square hollow sections are one profile family within a wider coated-tube programme. Before choosing a finish, it helps to understand how the tube is made and where each coating performs best — read our overview of galvanized steel tube types and benefits.