Galvanised trunking...to wood?

[Onoff]

I want to run some 50x50 galv trunking at high level around the garage. First though was to space it say 15/20mm off the underside of the trusses and screw through to the timber wall plate. This to allow space if I ever say plasterboard the garage ceiling. The trunking would sit say 1/4" off the wall plate (on plastic packs), where it passes over the vertical restraint straps etc. A run also has to come down over that restraint strap where the brick pillar meets the Celcon blocks. 

 

Fixing to wood, is this a bad idea?

 

(No I didn't have the engine hoist up there to pull an engine out). 

 

 

 

[TonyT]

Fix to anything you want 

when the wall plate is on fire the trunking is to be replaced anyway.

 

I hate 2x2 trunking. It’s a hand cutter prefer 3x3. A bit more room for bushes etc 

 

Edited October 26, 2022 by TonyT

[Onoff]

  On 26/10/2022 at 22:25, TonyT said:

when the wall plate is on fire the trunking is to be replaced anyway.

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That was my thinking. Where it passes over the doorway (the escape route) it'll have to be fixed anyway to the celcon blockwork. 

 

I'm feeling guilty as I bought pre made corners.

[TonyT]

Just make sure there is a full length over the door fixed centrally then there will be no sag from a join.

 

a bit of all round band or metal tie rap inside the trunking fixed to the wall above  the door will solve any worries  about pre collapse/fire escape issues.

 

nothing wrong in buying bends, speeds the installation process up.

 

make sure you have your continuity straps across the joins😏 

[Roys]

Will pre collapse be a concern when he is using galvy trunking @TonyT ?

i will using galvy 2x2 or 3x3 in garages / workshops, usually come of it with 20mm plastic conduit down to sockets and switches.

[TonyT]

I have no issue with it, onoff mentioned it.