UR-04Drill and fix the bracketsCables and pipes can run almost anywhere in a kitchen wall, especially near sockets and the sink. Use your detector, then still treat the wall as live until proven otherwise — find your stopcock (usually under the kitchen sink) and check it turns before you start, and if there's any doubt, isolate the circuit at the consumer unit before drilling. For a timber stud, drill a 2mm pilot hole into the centre of the stud and drive in a wood screw. For a metal stud, use a self-drilling metal-stud fixing or hollow-wall toggle rated for the wall thickness — never a plastic wall plug or ordinary wood screw, as these strip straight through 0.5mm steel. For any bracket landing between studs on plasterboard, fit a toggle-type hollow-wall anchor rated for at least double the loaded weight, since a rail loaded with pans pulls outward as well as down.