Attach wood stud to galvanized square tube

TH-huset · 2023-05-23T07:41:46+00:00

Hello, I have a floor joist that I am going to lay over a frame of galvanized square tubing. The frame is made of galvanized steel and with 60cc, which means I want to attach the floor joists directly on top of the steel. I was considering if I could take proper wood screws, maybe Frans wood screws, make holes through the steel from underneath and then screw up through the steel into the joist. However, it feels like I could easily deform the beam if I pull too hard, which I definitely don't want to do. Another option I had was to weld loops onto the frame that I screw the joists into, but I don't know how well and rust-proof I can weld in galvanized steel. It would be great if someone here has a good idea for how I can proceed!

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Rickard.

#16

Member

· 7 172 posts

23 May 2023 at 8:33 PM

Rickard.

Member

7,172 posts

23 May 2023 at 8:33 PM

T Vilgot Småhus said:
okay, that was good info so the coating is a bit more than just on the surface?

No, the coating is only on the surface, but the zinc works (roughly) as a sacrificial anode for the bare steel and protects it.

Attach wood stud to galvanized square tube

Rickard.

Rickard.

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