PH-06Fix brackets between studs or into metal studsWhere a bracket lands between studs, there's no timber behind the plasterboard, so use a toggle-type hollow-wall anchor rated for at least double the expected load. If a bracket lands on a metal stud, use a self-drilling metal-stud fixing or a hollow-wall toggle made for metal studs — never a plain plastic plug or an ordinary wood screw, which strips straight through 0.5mm steel. A rail carries light, static weight, so these fixings are fine here; if you were fitting anything heavier that pulls at the wall, you'd need a timber noggin behind the board instead.