AB-04Fit the right fixing for your wall typeSolid brick or block: drill with a 6mm masonry bit to 40mm depth, blow out the dust, fit a 6mm wall plug and a 40mm screw. Plasterboard on timber studs: on a stud, use a 35mm wood screw into its centre with a 2mm pilot hole first; off the stud, use a plasterboard toggle rated for at least 2kg. Plasterboard on metal studs: never use a wood screw or a plain plastic plug — it strips straight through 0.5mm steel. On the stud, use a self-drilling metal-stud screw; off the stud, use a self-drilling hollow-wall anchor or toggle rated for the loaded weight, since a full set of knives can be 1-2kg. Dot-and-dab plasterboard: the board sits on foam dabs in front of solid masonry, so a plug in the board alone will eventually pull free — use a 60-75mm fixing with a matching plug that reaches at least 30mm into the masonry behind. Lath and plaster: the plaster is brittle, so find the laths first, drill a pilot hole, and use a long screw that bites into the laths and the timber behind, or a proper lath-and-plaster fixing.