My new house has an attic room with a fairly steeply sloping ceiling down
one side of the room. It's far enough into the room for the floor area
underneath it to not be much use as is. My thinking is that the best bet
would be to put in a rail and use the area as a wardrobe. The problem is
that a) the wall / ceiling will most likely be some sort of plasterboard.

My thinking is that it'll be relatively simple to put a bracket on the end
where I've got a proper wall, but what about the end where I want to be
bolting onto the "ceiling"? Most fasteners are designed to take a force
perpendicular to them, but if I bolt something like this:

http://www.screwfix.com/app/sfd/cat/...33029&ts=66276

to hold up the other end, the screws will be pulled by the weight of the
clothes on the rail at a 45 degree or so angle.

Anyone got any bright ideas? I don't really want a rail running the length
of the room as it must be 16 foot, and I've not got many clothes, and I
don't really want to end up making a wooden framework to support the rail
either...