BC-05Drill and fit the right fixings for your wallBefore drilling anywhere, find your stopcock (usually under the kitchen sink) and check it turns freely, so you can cut the water off fast if you hit a pipe. If your detector shows anything close to the marks, or you're at all unsure, isolate the electrics at the consumer unit and turn off the water at the stopcock before you drill. Solid brick or block: drill 6mm holes to at least 40mm depth, fit red plastic wall plugs, and use 50mm screws. Timber stud: drill a small pilot hole into the centre of the stud and drive in a 50mm wood screw directly, no plug needed. Metal stud: never use a plain wall plug or wood screw, as they strip straight through 0.5mm steel; use a self-drilling metal-stud anchor or a toggle-type hollow-wall fixing rated for the cabinet's loaded weight, following the fixing's own pilot hole size. Dot-and-dab: use a long fixing (typically 75mm) that passes through the plasterboard air gap and bites into the masonry behind, not a short plug that only grips the board. Lath and plaster: use a spring or gravity toggle that spreads the load across the laths rather than screwing straight into one, which can crack the plaster.