Attaching a WC cisten to a cavity wall

[SparrowHawk99]

This is a problem as the wall plugs 10x50s are for solid wall construction and I can't find anything this size for cavity walls

It's to late to fit supporting stud work behind as it has already been tiled

Any suggestions ?

 

[maltaron]

Spring toggles are probably OK but you will need a large tile drill as they usually need around a 12mm hole to get the folded wings thro'.

 

[ban-all-sheds]

This is a problem as the wall plugs 10x50s are for solid wall construction and I can't find anything this size for cavity walls

Cavity walls have 2 solid leafs.

It's to late to fit supporting stud work behind as it has already been tiled

Who planned that?

 

[SparrowHawk99]

Spring toggles are probably OK but you will need a large tile drill as they usually need around a 12mm hole to get the folded wings thro'.

Not a problem, I have an 18mm tile bit..

Wall is 8mm tile + 3mm adhesive behind + 18mm wbp ply, then a cavity

Here is a picture of the fixing that came with the basin. It is screw thread one end and metric thread the other. Toggles look to work with metric thread but will they work with the screw part? I'm guessing no

Untitled

• SparrowHawk99
• 11 Apr 2014
• 1

I guess I could buy M10 toggles that come with the thread and then slide this nut onto it + the plastic bushing, which seems more logical... the problem being although I can find M10 toggles with thread.. I can't get them anywhere locally. The largest I can find in most stores is M6 and then it's only internet who has them .. which means ordering + waiting a few days.

This is a problem as the wall plugs 10x50s are for solid wall construction and I can't find anything this size for cavity walls

Cavity walls have 2 solid leafs.

It's to late to fit supporting stud work behind as it has already been tiled

Who planned that?

I did. That's why its ****ed. My first time doing a bathroom and of course was bound to forget something crucial. A toilet cistern also needs fitting in the same way to the basin so I need to make sure whatever I use is strong enough and will last

 

[maltaron]

The walls are 18mm ply? I thought we were talking about plasterboard. Those screws that you show should hold OK in 18mm ply as long as the pilot hole is'n't too big.

 

[ban-all-sheds]

Spring toggles wouldn't be any good anyway - they resist pulling out, not rotating under a shear load. Which those screws might do anyway with only 18mm of ply round them.

 

[SparrowHawk99]

Thanks all