finding joists in ceiling and which way they running.

Hi, Couple of things. Check the sliding track system. Not all are top hanging doors. Sometimes the top track is a simple guide and the weight of the doors is not he bottom track and rollers in the door. If this is the case the top track needs minimal fixings as it carries no weight. If this is not your set up and the doors do actually hang from the top track, you are right to try to find a ceiling joist. The track shouldn't need to be along the joist, but enough fixings to support the track. Easiest way is to check in the loft, if they are visible or if boarded look for the fixing lines that will give you an indication. If that is not an option, then a guide can be the way the floor joists run, again look at the floor board orientation and the fixing lines. This should be perpendicular to the joists. A stud finder would be useful here to help locater and avoid cables. Hope that helps. Good luck.

Hi, as archer furniture mentioned try finding the ceiling joist, and remember the ceiling joists should be running the shortest distance .i.e. if a room is 5mx3m the joists should be running the shortest distance,3m. Also a lot of ceilings are set at 600mm centres not always 400 centres. So check both. If you don't have a joist detector, carefully tap a 2" oval nail into ceiling along where you think joist maybe, there maybe a few small holes to caulk over but you will son feel the solid joist. Please make sure you're aware of any wires running to ceiling lights etc. Hope this helps.

Usually, the top track is only a guide. Therefore cavity fixings is all you need. If you catch a joist all well and good, bit I've used the cavity fixings on numerous occasions and no bother whatsoever.

Hi, Joists are normally running the shortest span of a room. Typically 400 centre spacing between each joist but in some cases they can be 300 or 600 max if part of a roof truss. Some ways to find the joists are: run a few small magnets along the ceiling they should stick where there are screw or nails behind the plaster holding the plasterboard up, stud finder tool will detect timber behind plaster, measuring off one wall at 400 centres and carefully screw through the plaster, if the screw bites you should have hit a joist. Always check where sockets and pipe work are before carrying out any of these methods, cables run up walls usually and are bored through the centre of joists. Same as pipes. Once you’ve found the joist spacings, use screws that are long enough to fix the frame through the plasterboarded ceiling into a joist but not too long that could potentially hit any services unseen.