Steel structure carport material selection

Apr 10, 2026 Leave a message

How to Choose the Main Steel Structure

The frame of a steel structure carport is like the skeleton of a person; choosing the right material is crucial to withstanding wind and rain. Currently, there are two main choices:

Hot-dip galvanized steel: The galvanized layer acts like a sun-protective layer, resisting rainwater corrosion. Suitable for humid areas, its service life can reach over 15 years.

Ordinary carbon steel: Economical, but requires regular painting and maintenance. Suitable for environments with limited budgets and dry climates.

Tip: Choose square tubes or H-beams for the cross-section shape; their wind resistance is about 20% better than round tubes.

 

The Secret Weapons of Corrosion Prevention To keep your carport rust-free for years, these protective measures are essential:

Powder Coating: Giving the steel a colorful coat, providing both rust prevention and aesthetics. Matte/metallic finishes are available.

Coating Thickness: Hot-dip galvanized layers are recommended to be at least 80μm thick; in coastal areas, 120μm is necessary.

Weld Treatment: Welded areas must be coated with anti-rust paint; this detail is often overlooked during construction.

 

The Golden Combination of Roof and Accessories Roof materials determine the shading effect and overall style:

Polymer Sheets: Translucent but not transparent, lightweight, and UV-protective.

Corrugated Steel Sheets: Cost-effective, but noisier during rain.

Laminated Glass: High-end and aesthetically pleasing, requires a reinforced steel structure for load-bearing capacity.

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