Standard roll or back roll
On a standard roll the fabric comes off the front of the tube and hangs further from the glass. On a back roll it comes off the rear and sits closer to the reveal, which narrows the side gap for nothing extra. Back roll is the better bedroom answer nine times out of ten — and the wrong answer entirely on a window with a handle, a deep architrave or a security screen in the way. It is a two-minute decision at the measure and it cannot be changed afterwards.