Corefix bridges the gap between the plasterboard and the solid wall behind with a steel core fixing. Note the screws are 6mm diameter, check the holes in your fitting can accommodate the screw size, you may need to gently open up the bracket hole with a 6mm metal drill to ensure a good fit. Corefix is a unique heavy duty fixing system for dot and dab wall construction, a method used almost exclusively in the UK’s new build homes.

Unless your property has a timber frame construction, the ground floor walls, even internally, are almost certainly going to be of a dot and dab construction. Living in a new-ish house with dot and dab exterior walls, fitting anything heaver than a picture to the wall has always been a real bind. Corefix solves this problem by securing the load to the solid wall behind, and not to the plasterboard, so unlike traditional frame fixings won’t deform or crush the plasterboard into the void.

Just to add, if you’re nervous about the Thermalite blocks and want to avoid drilling into them, have a look at Gee Fix fixings. This will depend a lot on what is behind your plasterboard wall and what fixings you are going to use.

Rails seem very sturdy with no wobble which I had on a previous rail fitted with normal plugs and screws. This is what prevents the load can severely distorting or crushing the plasterboard into the void – which is what is likely to happen over time with the other inferior fixings. I've used similar fixings before (Rigifix) to wall hang tv's on dry lined walls and they also work really well however they were too bulky for use with the blinds but the corefix stuff was spot on. Use the drill to create a hole, hammer in the wall plugs and steel core, and secure the screw with a screwdriver to complete the installation.Furthermore, their core is held within the wall plug and so itself provides additional lateral support that the pipe/broom method doesn't. I’m at about 30mm before I get to a block, and assume I’d want another 40mm into that to hold a rawl plug. This covers a multitude of different styles of which Corefix is just one and you may also come across terms such as wall plug / wall anchor and drywall anchor.

With the screws (5 x 100 mm) provided you can only mount things up to 10 mm thick on the wall but with longer screws (I bought some 5 x 120 mm) you can do up to 30 mm. Not what you want when your kitchen wall unit is full of your best crockery – a gift from the mother in law! Let them help you identify product alternatives, source additional technical data and find answers to your technical questions. fair enough and point taken, but a lot does depend on the quality of the plasterboard and the general construction of the build. The commonly used rawl plug and screw is a classic example, but for a more secure and safe fixing the Corefix solution is hard to beat.IF the wall plug and screw jam and don't go in to the depth where the wall plug drives through into the brick solid/something where you can drive the screw till the depth required, undo the screw get a drift the same size as the hole (remove the drill use the other end of it? Available in three ranges Corefix original, for all block and brickwork, Corefix Air, for lightweight thermalite blocks and Plus30, with a 20mm longer screw for deeper brackets and fixtures (on the outside of the plasterboard).