SR-01Plan, measure and buy everything firstClear the room and measure the window, the wall space for pictures, and the floor space for the bed and any wardrobe or chest of drawers. Buy paint, a curtain pole, a roller blind kit, picture fixings, the flatpack bed, and anti-tip straps before you start, so you're not stuck mid-task waiting on a delivery. Work in this order: touch up paint first, then dress the window, hang pictures, build the bed, then anchor tall furniture last. Allow a full weekend for the drilling and fixing tasks, plus extra time if paint needs to cure overnight; total cost usually runs £150–£300 depending on the furniture and window treatments you choose.