Put up a heavy-duty floating shelf with hidden rods on a metal stud wall — HomeGraft

Fit a hidden-rod floating shelf safely by identifying your wall type, fitting a hidden noggin, and using the right fixing for each material.

HS-01Plan the job and buy the right kitDecide where you want the shelf and buy a hidden-rod bracket kit rated for the load you plan to put on it. Measure the space and rule out any sockets, radiators or pipework nearby before committing to a spot. Read through the fixing steps below before buying fixings — what you need depends entirely on what's behind your wall.

1 each · Hidden-rod shelf bracket kit

Buy:ScrewfixB&QToolstationAmazon

1 each · Tape measure

Buy:ScrewfixB&QToolstationAmazon

1 each · Pencil

Buy:ScrewfixB&QToolstationAmazon

HS-02Work out what's behind your wallRun a stud detector or magnet along the wall to find a line of screw heads under the plasterboard — that line tells you where the studs run. Tap between the marks: a hollow sound means stud wall, a dead solid sound means brick or block, and a hollow sound over a hard layer around 40-60mm deep means dot-and-dab. A small pilot hole tells the rest — fine timber dust means a timber stud, shiny metal swarf means a metal stud, and lath and plaster gives a series of narrow ridges roughly every 400mm with a bit of give between them.

1 each · Stud detector

Buy:ScrewfixB&QToolstationAmazon

1 each · Small drill bit, 3mm

Buy:ScrewfixB&QToolstationAmazon

HS-03Find your stopcock before you drill anythingFind your stopcock — usually under the kitchen sink — and check it turns freely so you can shut the water off fast if you hit a pipe. Cables and pipes can run almost anywhere in a wall, not just the usual safe zones, and a detector can still miss cables that are deep, in metal conduit, or behind metal-backed board. A metal stud frame confuses cheap detectors even further. If you have any doubt about what's behind your marks, isolate the circuit at the consumer unit before drilling, and turn the water off at the stopcock before cutting into anything that could carry water.

HS-04Mark the shelf line and rod positionsDraw a level line at your chosen height using a spirit level. Mark where each hidden rod will sit along that line, checking your kit instructions for spacing — usually 400-600mm apart for a heavy-duty shelf. Line these marks up with the solid fixing points you found in step 2.

1 each · Spirit level

Buy:ScrewfixB&QToolstationAmazon

1 each · Masking tape

Buy:ScrewfixB&QToolstationAmazon

HS-05Open the wall and fit a hidden nogginOn a METAL STUD wall, a stud on its own will not hold a heavy floating shelf — the leverage from the load will pull a fixing straight through the thin steel. Cut a small access panel in the plasterboard between the studs at each rod position, then fix a length of 45x45mm timber noggin across the studs using self-drilling metal-stud screws so it sits flush behind your marks. On a TIMBER STUD wall, do the same if your rod marks miss the centre of a stud, using 50mm wood screws instead. On DOT-AND-DAB, skip this step — you'll fix straight through into the masonry behind. On LATH AND PLASTER, carefully remove a small section of plaster and lath between two studs, fit the noggin with wood screws, then patch the lath before re-boarding.

2 each · Timber noggin, 45x45mm x 600mm

Buy:ScrewfixB&QToolstationAmazon

10 each · Self-drilling metal-stud screws

Buy:ScrewfixB&QToolstationAmazon

10 each · Wood screws, 50mm

Buy:ScrewfixB&QToolstationAmazon

1 each · Plasterboard saw

Buy:ScrewfixB&QToolstationAmazon

HS-06Patch the plasterboardScrew the cut piece of board back over the access panel, or cut a fresh patch to fit. Fill the joints with joint filler, let it dry fully, then sand smooth. Skip this step on solid masonry or dot-and-dab walls where you didn't need to open the board.

1 each · Plasterboard patch offcut

Buy:ScrewfixB&QToolstationAmazon

1 each · Joint filler

Buy:ScrewfixB&QToolstationAmazon

1 each · Sandpaper

Buy:ScrewfixB&QToolstationAmazon

HS-07Drill and fit the rods for your wall typeSOLID BRICK OR BLOCK: drill with an 8mm masonry bit to 60mm depth, fit a heavy-duty expanding bolt or resin anchor, then screw the rod in tight. PLASTERBOARD ON TIMBER STUDS: drill a pilot hole and drive a coach screw straight into the centre of the stud or noggin. PLASTERBOARD ON METAL STUDS: drill through the board into the noggin fitted in step 5, using a coach screw long enough to bite at least 35mm into the timber. DOT-AND-DAB: drill through the board and the dab void into the masonry behind — you'll usually need a fixing of 75-90mm total length to bridge the void and grip properly. LATH AND PLASTER: drill through the patched section into the noggin behind, avoiding the original laths.

4 each · Expanding bolt or resin anchor

Buy:ScrewfixB&QToolstationAmazon

4 each · Coach screws, 80mm

Buy:ScrewfixB&QToolstationAmazon

1 each · Masonry drill bit, 8mm

Buy:ScrewfixB&QToolstationAmazon

1 each · Wood drill bit, 6mm

Buy:ScrewfixB&QToolstationAmazon

HS-08Fit the shelf onto the rodsSlide the shelf carefully onto the protruding rods, checking it sits flush against the wall as it goes on. Secure any retaining or set screws specified in the kit instructions to lock the shelf in place.

1 each · Allen key or screwdriver (kit-supplied)

Buy:ScrewfixB&QToolstationAmazon

HS-09Level the shelf and test the loadCheck the shelf is level with a spirit level and adjust it if the kit allows. Once fixed, apply gentle downward pressure and build up gradually to your intended maximum load, watching for any movement or give at the wall before trusting it with anything valuable.

HS-10Tidy up and finishVacuum up dust and offcuts, and wipe down the shelf. Touch up any filled patches with matching paint once dry. Keep any spare fixings and the kit instructions somewhere safe in case you need to remove the shelf later.

1 each · Touch-up paint

Buy:ScrewfixB&QToolstationAmazon

Some links may earn us a small commission at no extra cost to you.

Save this as a project

Back to all guides