I thought I'd seen a post about this a few months back, but a search did not turn it up.
We're losing a couple of smaller closets to a renovation, but I could replace them with a long narrow closet. This would actually give more space, but it's too narrow for a walk-in. So I was thinking I could have some kind of spring loaded pole that would extend out of the opening. The closet will be about 30" * 10'. I'd be happy with about 3' of pole. I could build my own using a larger outer pipe sliding on a smaller inner pipe, but if a commercial product exists, I'd rather not reinvent the wheel.
Assuming I build my own, how would I support the extension? Some kind of sliding bracket on the ceiling attached to the inside edge of the outer pipe?