I'm trying to locate the studs in a plasterboard wall to mount a 75" TV but so far with no luck.
I've attempted to use a stud finder, but upon drilling into the wall where it locates a stud I'm finding no more than the 15mm plasterboard seen in the pics below.
It seems to be locating "studs" about 250mm apart, which seems too frequent.
Additionally, there's a slight vertical crack running up the wall against which I'm told there's a fairly good chance there'll be a stud behind it, but drilling through again I seem to hit about 15mm of plasterboard with nothing behind it (judging by the material left on my drill bit).
Additionally, I can't seem to find any screws joining the plasterboard to the studs using a strong magnet I bought for this purpose.
I've taken a look behind one of the power sockets situated dead centre of the wall (centered both width-wise, and height-wise) but I can't make out the construction. It looks like there's...
A solid brick/mortar wall (to which the backbox is screwed to).
A void of 10mm or so.
Insulation of 20mm or so.
15mm plasterboard.
...does anyone have any suggestions on how best to approach this?
I've attempted to use a stud finder, but upon drilling into the wall where it locates a stud I'm finding no more than the 15mm plasterboard seen in the pics below.
It seems to be locating "studs" about 250mm apart, which seems too frequent.
Additionally, there's a slight vertical crack running up the wall against which I'm told there's a fairly good chance there'll be a stud behind it, but drilling through again I seem to hit about 15mm of plasterboard with nothing behind it (judging by the material left on my drill bit).
Additionally, I can't seem to find any screws joining the plasterboard to the studs using a strong magnet I bought for this purpose.
I've taken a look behind one of the power sockets situated dead centre of the wall (centered both width-wise, and height-wise) but I can't make out the construction. It looks like there's...
A solid brick/mortar wall (to which the backbox is screwed to).
A void of 10mm or so.
Insulation of 20mm or so.
15mm plasterboard.
...does anyone have any suggestions on how best to approach this?