3 layers of plasterboard stud wall

[dawsirn]

Hi,
has anyone else ever come across a stud wall that consists of 3 layers of plasterboard just stuck together.

I thought it i had a nice easy job of cutting out a couple of fastfix boxes and fishing tv and Power cables into loft but as i was cutting out the boxes i realised it was a bit thick, double boarded i assumed so started cutting a bit deeper but then realised i had daylight! went straight through to the kids room the other side!! after a lot of head scratching/measuring i realised the wall consists of 3 sheets of plasterboard basically stuck together dot and dab style. Didn't come across any timber but i'm guessing there had to something somewhere.
The complete thickness of the wall was only about 70mm so couldn't as even fish cables up as it was too tight and had to chase the whole route up which i lost a lot of time on!

Never come across a stud wall like it, didnt know if anyone else had? The housing estate was built approx late 80's.

 

[Englishman]

Came across plasterboard today that was just 35mm off the block wall, including the depth of the board. Complete nightmare to fix anything to.

 

[SPARTYKUS]

Came across plasterboard today that was just 35mm off the block wall, including the depth of the board. Complete nightmare to fix anything to.

Sounds perfect for a plastic patress...? Am I missing something...? They are 35mm deep! What were you trying to do/ have I misread your post?

 

[Englishman]

Sounds perfect for a plastic patress...? Am I missing something...? They are 35mm deep! What were you trying to do/ have I misread your post?

Fix a bracket for a night storage heater!!

 

[monkeyelectric]

Fix a bracket for a night storage heater!!

Either hollow wall anchors or drill straight into blockwork and use longer screws? Simples!

 

[snowhead]

20mm hole in board
35mm of 20mm plastic conduit as a sleeve, to avoid bridging the thermal barrier.
Drill wall, long screw and plug,, done.

Or window frame fixings as they have a built in sleeve.

 

[Daveaddiss]

Came across this as well in a flat. The kitchen fitter had fun fixing units to the wall. Wiring was a type I hadn't come across before. Pre wired pvc channel