Wall plug in wall with really thick plaster

[sjws1888]

Hi

I've got a solid brick wall that has got several sheets of plasterboard over it so that the plasterboard is about 50mm thick and this wall is tiled.
I want to hang quite a heavy mirror on this wall. Would I be best get a really long wall plug like 120mm long plug fitted so that open end of the plug is level with the the tiled surface, or would be stronger if the wall plug is open end is level with the surface of the brick (i.e. sunk all the way into the plaster work) and then use a screw that is long enough to screw all the way into the plug?
Hope that makes sense.
Thanks
Joe

 

[rsgaz]

Would I be best get a really long wall plug like 120mm

Yes, no need to go crazy on the length, 50mm into the brick is fine, so a 100mm plug and screw. 'Frame fixings' are common at those lengths.

level with the surface of the brick (i.e. sunk all the way into the plaster work)

That way, the front of the screw will sag down and be resting on the tile, not ideal. Especially if the mirror hangs on two screws and you are trying to get it dead level.

 

[foxhole]

Tiled plasterboard will take a lot of weight without needing anything special by way of fixings .

 

[sjws1888]

Thanks for the replies everyone.
Final additional question - should the top of the wall plug (the open end) be flush with the surface of the tile or should it be sunk in a little bit so that it is flush with the level of the plaster?
Cheers

 

[rsgaz]

Most frame fixings have quite a pronounced rim, you won't be able to sink it deeper, so go flush with the surface.

You may even have to cut it off! With your odd wall though, frame fixings are the only option really!

 

[Keithmac]

I had to use frame fixings on our kitchen cupboards, really good bit of kit and very secure.

 

[sjws1888]

Most frame fixings have quite a pronounced rim, you won't be able to sink it deeper, so go flush with the surface.
View attachment 169117
You may even have to cut it off! With your odd wall though, frame fixings are the only option really!

Flush with the surface of the tile?

 

[rsgaz]

yes.