Mounting my plasma

[cleverdave]

Hiya guys im at wits end trying mount my 50" plasma im a bit of a noob with this diy so go easy on me .Righty so far i got the bracket and that but having problems id'ing my wall type the landlord said its a support wall and it does sound solid compared to my other walls and backs on to my stairs but when drilling its like knife through butter its just going through its defo hitting summit all the way through so not hollow but doesnt seem to be any bricks or nothing i was expecting is this right to mount a tele on.Its a victorian terraces so old walls

 

[plugwash]

Some bricks are a lot tougher than others and the same goes for the mortar (at my parents house we have the annoying combination of very hard brick and very crumbly mortar).

IIRC chemical anchors are generally the reccomended method for attatching heavy items to crumbly walls.

 

[cleverdave]

I went in a good 3" so looks like i got it easy .I will look into chemical anchors wont the concrete anchors be any good what i got with the bracket ive got a very very tight budget paying £9 for a 12mm masonary bit for me drill DOH

 

[plugwash]

The problem with mechanical anchors is that they rely on what they are screwed into being tough enough that when the anchor expands it solidly grips the material. If the material is too weak it will just crumble and/or crack away rather than being gripped.

 

[cleverdave]

Its a very heavy tele so defo got go the chemical route then is there and special kind i need as a quick google brought up a few kinds

 

[ChrisFrost]

ScrewFix's No Nonsense chemical anchor is simple to use, sets reasonably quickly, isn't expensive and is more than good enough for this sort of job. LINKY

 

[cleverdave]

Thank you just orderd some do i just squirt a load in the hole then insert the plug ive never even heard of the stuff before ya gotta start from somewhere thou

 

[ChrisFrost]

1) buy some metal studs or make them by cutting down threaded rod and adding nuts and washers. 6mm or 8mm diameter rod will be fine for hanging a plasma screen as long as the wall is sound and you fix with 6 points.

2) buy a suitable drill bit approx 4mm bigger than the diameter of the studs being used. i.e. 6mm stud = 10mm drill bit

3) offer up bracket and mark the fixing points (normal caveats apply about ensuring you watch out for pipes and cables, and that you have a sound wall to fix to.

4) drill holes to the depth of the stud's length. Know the depth of the wall you are fixing to. Don't drill deeper than the thickness of the brick or block. If necessary cut down the length of the studs to suit. Allow for 10-15mm of the stud to be proud of the hole - this is what you'll fix to.

5) clean debris from holes - use vac attachment

6) check alignment of holes with bracket

7) set up your resin anchor in a mastic gun and ensure you have the studs to hand. Get a cloth for cleaning excess resin. You can use masking tape to protect the wall finish and also use it to make a support sling if you find the studs drooping after being inserted

8.) read the setting time in the instructions for your resin compound. Take note of the room temperature

9) working one hole at a time - part fill a hole with some resin, then take a stud and insert it with a clockwise screwing motion. Set the depth so that enough stud is left exposed. Clean off any excess being careful not to get it on the thread of the rod. Dried resin will be difficult to remove.

10) Clean your hands before moving on to the next hole, and repeat the process


Notes - avoid the temptation to fiddle with the studs as they are setting.

 

[cleverdave]

Wicked thanks with the help of you guiys i think ive got it coverd and going give it a go tomoz .Going use 8mm rods i think for best just 1 part now where it says part fill what do you reckon half fill the hole or less than that and hopefully will have some photos up tomoz of my handy work

Are these right
http://www.screwfix.com/prods/18004...-110mm-Drill-Size-10-Max-Fixture-75-Pack-of-5

 

[ChrisFrost]

Those studs you linked to are fine. Just check that your bracket holes are big enough for the 8mm diameter.

How much resin... Try half full first then adjust for the next hole. That's why I said to do it hole-by-hole, see

Good luck

 

[cleverdave]

All my stuff has bin sent out now so defo got it tomoz are my calculations correct ive got to drill in the wall three and a half inch the walls only 6 and a half so thats more than half way

 

[ChrisFrost]

OK, so it's a support wall in a Victorian terrace, so chances are we are dealing with house bricks rather than modern breeze block.

House bricks are 4" wide (or deep as you are drilling in from the side); so half of that is 2". You then have either some plaster over the brick (about half an inch thick) or dot-n-dab with a thin skim of plaster over the top (see here) so possibly an inch or so to the plastered face of the plasterboard. If the wall sounds solid then it's likely to be plastered up directly rather than dot-n-dab; but you do have to be careful if it's old plaster (grey, coarse, crumbly rather than pink, fine and solid for new) because the old stuff can dry out and bow leaving a hollow between the plaster and the brick.

You're going to have to work out which top finish you have and adjust your depth accordingly. You'll be able to drill in to the brick about 3", then add whatever depth you need for the surface finish.

 

[cleverdave]

Just drilled a little pilot hole i would say its the old plaster grey and crumbly my luck aint it .Worked out the 3 and a half inch by the 110mm stud with 15mm hanging out wall im just going have to go with that i think

 

[cleverdave]

With the help of you guys i got it done was fairly straight forward to do its hard judge how much resin is in the hole thou my only concern is if you look in the second pic the wires are actually pushing the tele away from the wall and bracket is this ok

 

[Monkeh]

No, order some of these: http://www.everytronics.co.uk/produ...o-RCA-socket,-right-angle,-Black-760.682.html