Shelving near you

Shelf material decides deflection more than anything else. Solid timber and good plywood are stiff for their thickness; melamine-faced chipboard is not, and a long unsupported run of it will take a permanent bow within a season of holding books. Medium-density fibreboard sits between the two and is fine for short spans or where a front edge stiffens it. Adding a lipped front edge, even a slim one, dramatically increases stiffness for very little cost.

Brackets matter next. The rule of thumb that matters is that the bracket should support most of the shelf's depth: a 300mm shelf on a 150mm bracket will tip forward under a load placed at the front. Continuous rail systems spread that load across several fixings and let you add an extra bracket later when the shelf turns out to carry more than planned.

Floating shelves are the exception to all of this. All the load is transferred as bending at the wall face, through two or three steel rods, which means the fixing and the base material have to be excellent. They are a good choice in solid masonry and a poor one in plasterboard - including dot-and-dab - unless the rods are long enough to reach well into the masonry behind the board and the shelf is treated as decorative rather than structural.

BS 8539:2012+A1:2021 gives recommendations for the safe selection and installation of anchors in concrete and masonry and is aimed particularly at safety-critical applications. Its underlying logic transfers straight to domestic shelving: an anchor's performance depends on the base material it is set into, the hole diameter and depth, how well the hole is cleaned, and the torque applied. Change one of those and the published load no longer applies. That is why a 'heavy duty' plug in a lightweight aerated block underperforms, and why a hole full of dust holds far less than the packet suggests.

Dot-and-dab is the British special case. The board is not the wall; it is a facing hung on adhesive dabs, with a void behind. Any fixing that terminates in the board is transferring the shelf's load into a 12.5mm sheet held on by glue, and the failure mode is not the screw pulling out but the board bowing away from the masonry, often taking the skim and the paint with it. The fix is a fixing long enough to pass through the void and anchor properly in the brick or block, ideally with a sleeve that prevents the board being crushed as the screw is tightened.

The corollary is that you have to know how deep the void is before buying the fixings. Drill a small pilot hole in a place the shelf will cover, feel the change in resistance as the bit passes through the board, through air and into masonry, and size the fixing from that. Guessing produces either a screw that stops in air or one that crushes the plasterboard into the cavity.

Nothing in an old alcove is square, so each shelf is measured individually at its own height, front and back, and usually scribed to the wall rather than cut to a number. A competent fitter will template the first shelf in thin card or hardboard, transfer it, and use it only as a starting point for the next one up, because the walls lean.

The order of work is battens or brackets first, levelled against each other rather than against the skirting; then a dry fit of each shelf; then scribing and trimming; then fixing and finally filling, sanding and decorating. If the shelving is being painted, it is far quicker to prime the boards before they go in than to cut in around them afterwards.

Expect making good. Cutting battens into old plaster produces damage at the ends of every run, and the finished look depends as much on the caulked line where the shelf meets the wall as on the joinery. That final stage is the difference between fitted shelving and a shelf that has been screwed to a wall.

The quotation turns on how much of it is joinery and how much is fixing. Alcove shelving that has to be scribed to leaning walls, painted and made good is carpentry with a decorating tail; a rail system in a garage is an afternoon. Beyond that the variables are the material and thickness of the shelves, the span and therefore the number of brackets, what the wall is and how long the fixings must be to reach something solid, whether pipes or cables have to be traced first, and whether the finished work is being painted on site or brought in ready-finished.

LokalMatch simply connects the two ends of that conversation. Describe the alcoves or the wall, say what will sit on the shelves and add your postcode; carpenters and handyman businesses who cover your area will contact you with their own quotations. The service is free to homeowners and paid for by the pros who receive the requests. LokalMatch does not build shelving, does not set prices and does not vet, rank or recommend anyone, so comparing what each quotation includes is down to you.