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Square Galvanised Tube

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Hi all, can anyone help me with the price of 1.5 inch square gal tube , i want to use it to build a greenhouse, and also corrugated polycarbonate roofing

Thank you

Scoop

To my knowledge they don't sell square tube that's already been galvanized. You could of course buy the raw material and go have it hot-dipped yourself...but you might be better off using the readily available round tube. I just built a shade structure for my chang using 1-1/2" galvanized pipe (actual OD is 46 mm, price was 520 baht per 6m at my local shop) and scaffolding clamps (yellow zinc galvanized double swivel from http://www.vpcgroup.co.th/ are 35 baht each, similar to this). That way you avoid any welding or questionable joints and you can always fine tune the angles and configuration in the future. For attaching sheet materials to the round pipe I use a pipe/conduit strap (5 baht each at local electrical shop, similar to this) or a pipe/conduit hanger (20 baht each at local electrical shop, similar to this).

  • Author

Hey Beechstreet, thank you very much for that information, i will have re think the design of the structure

Cheers

Scoop

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