AB-05Fit the ceiling hooks - method changes with what's behind the plasterboardTimber joist: drill a 4mm pilot hole into the centre of the joist and drive the hook's coach screw home by hand until tight - the timber alone takes the full load. Metal joist or channel (found in some flats and loft conversions): a wood screw or plastic plug will strip straight through 0.5mm steel, so use a self-drilling metal-frame fixing, or better, have a timber noggin bolted across the channels so you're screwing into solid timber. Lath-and-plaster ceiling: still locate the joist behind the laths, drill through the plaster carefully and into the joist, and back the hole with a wide washer to spread the load on the fragile plaster. Solid concrete soffit (some ground-floor flats): drill with a masonry bit to the plug's stated depth, clear the dust, and fit a load-rated plastic or nylon plug before driving the screw home. Never rely on plasterboard alone for any of these fixings - a pulley hoist pulls and jerks the ceiling as you winch, which will pull a plasterboard-only fixing straight out.