Mobile Partitions

i want 2 mount some shelfs to a partition wall in my bedroom , but some told me the shelfs would not be sturdy?

cause of the partition is just a wooded frame with a plaster board running covering , im afraid where to drill the holes and if the shelfs will be sturdy enough, any help recommended Here is a picture of the shelfs http://www.watsons-on-the-web.co.uk/WatsonSite/pages/product/product.asp?prod=CH1531-B&cookie_test=1

Public Comments

1. You need to find the wooden supports inside the plasterboard. You can do this with a mini metal detector - just mark where the nails are. Or you can tap the wall untill it sounds solid - find the average and mark it with pencil. Next - put your shelf where you think it's good, and mark a horizontal line. Where the horizontal and vertical lines of te wood supports cross, drill a small hole - and it should go into wood. If it does - great. If not, poke a curved bit of wire in there untill you feel the wood support, And drill another small hole (only 3mm). When you've located all the supports, Fit your shelf using as many of those as possible for 2 1/2" No8 screws. I've fitted heavy bookshelves full of A4 books this way - no problems apart from slightly bent screws due to shear loads. (Use a level too )
2. drill your holes in the studs a stud finder will help if you cant locate them yourself.when you find 1 the rest will be 16 inches apart
3. Get some raw plugs for plasterboards only.Screw the screw in the wall to make the holes,where you want them,then take them out.Then screw the raw plugs in,until they're flush with the wall.Put your shelf up to the holes,and then screw the screws into them.(as you screw in the screws the plasterboard raw plugs will spread out behind the wall and tighten it all up.
4. These should do the trick and are available from most hardware shops http://www.diydoctor.org.uk/projects/fixingtoplasterboard.htm
5. Just buy some toggle bolts that will fit through the support for the shelves. Position your brackets where you want then and make sure they are level. Mark the holes and drill. Put the toggle screw through the hole in the bracket and run the toggle part through the wall. Tighten the screw until the bracket is flush with the wall and tight. If it takes more than one screw you will have to do both a little at a time.
6. You can get a med duty fixing in just the plasterboard, however for any heavy duty fixings you would be better off finding the uprights and fixing to them. Your shelves have a pair of feet resting on the floor, these will take the majority of the weight on the shelves. The only reason the shelving unit fixes to the wall is to stop it toppling over. So you don't need a heavy duty fixing. Get some rawl plugs designed for plasterboard, they are similar to normal plugs except they have a rough collar which grips the plasterboard and stops them spinning when you screw in. If you buy them from a hardware store they should be able to advise the best ones. the size of screw you use is important, i would recommend about 40mm long. The thickness of the screw depends on the rawlplug it needs to be thick enough to grip the plug firmly but not so thick it forces the plug to spin and ruin the hole. Too thin a screw wont expand the plug in the wall and will reduce grip. Again whoever sells you the screws and plugs should know the best combo. Use the rawl plugs as you would in a block wall, mark out where they need to go, drill the holes just small enough to grip the rawl plugs, put the rawl plugs in, move the shelf into position and screw in, no need to over tighten. if any of the holes you drill are located over the wooden uprights then stop drilling, forget the rawlplugs and just screw straight into the wood for that hole.
7. Use plasterboard Rawl plugs. They are metal and can hold quite a lot of weight, easily enough for your shelves.
8. safe nafe has given you the correct answer.