How to secure this concealed toilet frame?

[Sard]

Hi,

I'm fitting my first toilet in my own house but reasonably competent at DIY. I understand concealed toilet frames are secured at the back against a block or stud wall. However in this understair w/c the wall behind the toilet is a aluminium/metal stud and I am certain it cannot take any significant loads. Therefore I was thinking to put a 2x8 across the back horizontally and secure it to the adjacent walls, which are block walls, using heavy duty corner brackets.

Does this sound feasible or should I take a different approach or look for a different frame?

 

[robinbanks]

Seems reasonable to me. 2x8 might be overkill (at that distance 2x6 would be fine) but if you have the space for it and the inclination..

 

[robinbanks]

ps; I take it you were thinking of a timber lying flat on top of the frame like a shelf, fixings bolted up into it and into the wall? (I was)

 

[Sard]

Ps I take it you were thinking of a timber lying flat on top of the frame, fixings bolted up into it ?

Ah, not quite. Flat against the wall, so for the frame can still be attached as designed.

 

[robinbanks]

Doesn't that rob you of two inches of room?

 

[Sard]

Doesn't that rob you of two inches of room?

Yep, it definitely does, but I have the soil stack to the left and the frame is not sitting properly, so it may just about work but I will measure.

Is there another way I could do this?

 

[robinbanks]

I have the soil stack to the left

Anything else feed into that stack or is it just this toilet?

Is there another way I could do this?

Vertically?

 

[Sard]

Anything else feed into that stack or is it just this toilet?

Vertically?

There'll be the waste from the sink feeding into the soil stack too.

Not sure how vertically would work. Do you mean horizontally above the frame as per your drawing?

 

[robinbanks]

There'll be the waste from the sink feeding into the soil stack too

You could see if your BC would accept an AAV being fitted rather than having the stack all the way up and out. If there is elsewhere on the property that it's an open vent it's more likely to garner a yes

Not sure how vertically would work

I meant floor to ceiling studs either side of the frame, like as if you were installing in an existing stud wall