Suspending a projector from ceiling...fixings?

Right guys, a few progress pics for you, unfortunately due to the awkwardness in the loft I was unable to take a pic of the bit of timber but basically used some 5x2 cut to 560mm and put this in between the joists.

Using some standard wood screws and washers the mount was securely fastened to the ceiling and will not be going anywhere quickly!:





I then went on to wall mount the speakers, remember this is having to double up as a guest room also hence the positioning (cables are only temporary until I decide where the AMP and eventual media player will live in the room, rears havn't been connected up):





Would rude to not show off the projector:





Plans are to paint the room a dark(ish) grey to help with the reflections and hoping the wife will let me paint the size of the screen wall white.

It is never going to be 100% as I need to make it a guest room also, will work with what I have and so far very happy with the results.
 
bitslice said:
Not really, plasterboard fixings are all intended for vertical loads - clamping something against the wall and then relying on the rigidity of the wall to hold them up

as soon as you apply a forward stress to this fixing (as in a projector hanging from a horizontal board), then you are merely relying on a 2cm patch of plaster not giving way.

In this case maybe it would work, but its wrong to dismiss any fixing as adequate when it is used outside of its normal intended use and the loadings are entirely different.

Say if a mounting pole was being used, that has the same overall weight but the loading is now completely different due to possible lateral loads and the fixings could then easily fail
Click to expand...

Eh? He was discussing fixing a projector to a ceiling, so there is only vertical load...

I have a 92" screen supported on 2 spring toggles into plasterboard ceiling and a projector supported by 4 spring toggles the same way.
 
I was under the impression that plasterboard fixings rely on the fact that you are fixing stuff to a wall, and the fixing is designed to spread the load downwards through the plasterboard. They work because it is very difficult to pull a screw down through plasterboard at right angles.

Fixing them to a ceiling is different because the load is trying to pull "out" through the board rather than down. Compared with the above, it would be a lot easier to pull a screw out of plasterboard than down through it. Fairly sure spring toggles would hold the weight of a projector though, just check there is no bowing in the ceiling.
 
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