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Stud measurement for basement

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Posted by: from Ajax
8/19/2018 at 9:13:35 PM

Hi I am trying to renovate a basement washroom and making a standing shower. One side of concrete wall I dont have any stud. Since I have space limitation I was thinking to install 2x2 stud and drill through the concrete wall. Will it be ok to do it or I have to go with 2x4. There would be no plumbing or electric on that wall. Only tile. Please advise. What does the building code says about it?

REPLIES (11)
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Date/Time8/20/2018 at 7:53:59 AM

If its an exterior wall it should have an insulation value of r26. And that takes about 6" of space. 2x2's wont work.

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Date/Time8/20/2018 at 9:42:33 AM

Hi

You definitely need insulation


Stud measurement for basement
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Mir in Ajax
Date/Time8/20/2018 at 11:05:32 AM

Thanks both Colin and Arash for reply. This is not an exterior wall. Stud will be drill with concrete wall in the basement, and for insulation I am planning to use Polystyrene Rigid Insulation foam and spray foam for the gap. I am going to tile the wall since this for standing shower. Do I still have to go for 2x4? I dont want to break the code policy though.

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Mir in Ajax
Date/Time8/20/2018 at 11:07:45 AM

Once again this is for the basement.

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Date/Time8/20/2018 at 11:54:12 AM

If this it's an interior concrete wall and you're just strapping it to attach drywall you can certainly use 2 x 2's or even 1x material attached to the concrete. Although the Code does not talk about adhesives to fasten lumber it should be OK to use a PL premium product in this application without fear of breaking the Code. Another option is drilling as you've suggested or ramset fasteners.

Ian Derksen; Safety Codes Officer - Building

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Mir in Ajax
Date/Time8/20/2018 at 12:20:01 PM

Hi Ian, Thanks a lot for your response. Yes it is a basement concrete wall and I will just tile the wall with a 2x2 stud and rigid foam insulation. No plumbing and electric will be there.

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Date/Time8/20/2018 at 3:00:37 PM

Since it is an interior wall, I see no reason why you couldn't tile the concrete wall. Maybe someone else can shed some light on my thinking.

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Date/Time8/20/2018 at 3:05:00 PM

Stick a piece of 1/2 inch KERDI board on the concrete wall with thin set mortar then you have a waterproof membrane on the wall and it will also be level and square to the other walls which will make tiling much easier.

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Date/Time8/21/2018 at 1:38:59 PM

Thanks for your comment. Just one more thing: the Code requires you to apply poly between non-pressure treated lumber if it's in contact with concrete below grade. I believe my suggestion of PL would be like an equivalency to the poly. In fact I'm doing the same thing in my own home right now (strapping an interior concrete wall to prep for wallboard & a shower). In my case I'm not installing rigid insulation.

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Mir in Ajax
Date/Time8/22/2018 at 10:22:42 AM

Thanks Ian once gain. I am planning to use Tuck tape between lumber and concrete. Hope that will work.

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Date/Time8/22/2018 at 3:45:20 PM

Yes! You can do what you proposed as long as not an external wall

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