How to Fit a Floating Shelf: Plasterboard, Brick and Plaster Walls

A floating shelf that has been fitted properly looks like it has no secrets: a clean line on the wall, no visible screws, no wobble when you put something on it. But there is one step you cannot skip to get there: knowing exactly what type of wall you have and which fixing suits it. It is the difference between a shelf that lasts for years and one that comes loose within a few months.

Here is how to put up a floating shelf step by step, on plasterboard, brick or plaster, with the questions people ask most before picking up the drill.

What you need to fit a floating shelf

• A drill with a drill bit suited to your wall material (a hammer drill and masonry bit for brick or concrete)
• Spirit level (essential: a small slope shows up a lot on such a clean line)
• Pencil to mark the fixing points
• The wall plugs and screws recommended for your shelf, depending on the wall type
• A cable and pipe detector, and a stud finder if you are fitting onto plasterboard
• Tape measure, to space the fixings properly if you are fitting more than one shelf

First, check what type of wall you have

The right fixing depends entirely on this step, so do not skip it. It is the number one reason shelves end up coming loose.

Brick, breeze block or concrete (solid wall): this is the easiest surface to work with. You can spot it because drilling produces fine, even dust and the drill meets steady resistance. A standard wall plug spreads the load well and lets the shelf carry its full rated weight. If the wall is plastered, the plug needs to reach the masonry behind the plaster, not stop in the finishing layer.

Plasterboard and stud walls: this is where you need the most care. If you knock gently with your knuckles, a hollow sound means plasterboard with nothing behind it, while a duller sound usually means a stud is nearby. Find the stud with a stud finder, or use a cavity fixing (such as a spring toggle or hollow wall anchor) that spreads the weight across the board instead of relying on the plug alone.

Plaster, dot and dab or fragile surfaces: find the masonry or solid support behind first, as with plasterboard. Plaster on its own does not always hold a load reliably and is more likely to crack.

How to put up a floating shelf, step by step

1. Choose the spot and mark the height. Think about how you will use it: at eye level if it is decorative, lower if it is practical (hallway, bathroom, bedside).
2. Find your fixing point. On plasterboard or plaster, look for a stud or use a cavity fixing. On a solid wall, any point works with the right wall plug.
3. Level up and mark the drill holes. The spirit level is not optional. Check it twice before you drill, because once the holes are made there is no going back without leaving extra marks.
4. Drill and insert the wall plugs. Follow the recommended depth for your plug. A bit that is too thin or a hole that is too shallow is the second most common reason a fixing fails.
5. Fix the hidden bracket to the wall. This is the part that will carry all the weight, so give it a gentle pull to check it is firm before you carry on, then slide the shelf on.
6. Slide the shelf onto the bracket. On most models it either pushes on firmly or has a small final grub screw that stops it shifting with use.

With the wall identified and the right fixing chosen, the whole job usually takes 20 to 40 minutes per shelf.

Fitting a floating shelf to plasterboard

Plasterboard is where most mistakes happen. Before you drill, check for hidden pipes and cables at the exact spot, especially on walls next to bathrooms and kitchens. Drill without hammer action, which cracks the board, and do not overtighten the screws.

If the shelf will carry books, plants or ceramics, the strongest option is to fix it into a stud. If the stud is not where you need it, choose a cavity fixing rated for your shelf and check the rating on the pack.

How much weight can a floating shelf hold?

The Brera shelf, made of curved plywood, holds up to around 15 kg in size L and in the Duo format when fitted correctly on a solid wall (brick or concrete). On plasterboard the load capacity drops noticeably, so always use the right cavity fixing for the load and don't load it to the limit.

If you prefer metal, both the Bergamo shelf and the Torino shelf follow the same logic: the wall, not the material of the shelf, sets the real load limit. A Torino on a solid wall can carry more than a Brera badly fixed to plasterboard.

As a general rule, on a solid wall you can rely on the maximum weight stated for your shelf. On plasterboard with a cavity fixing, allow a safety margin and spread the weight evenly instead of loading one end. Heavy single items (a large vase, a pot plant) weigh more than they look, so several medium objects are better than one heavy one.

Common mistakes when fitting floating shelves

Not checking the wall type before buying the fixings. A general purpose wall plug in plasterboard with nothing behind it is the most common reason a shelf comes loose over time.

Skipping the spirit level. A slope of a few millimetres is almost invisible when drilling, but it shows up once the shelf is loaded with objects.

Overloading the shelf beyond its limit. Every model has a limit. Going over it again and again weakens the fixing, even if it seems to hold at first.

Using an adhesive fixing for a shelf that will carry real weight. Adhesive strips work for very light accessories, but they do not replace a mechanical fixing when the shelf holds books, plants or ceramics.

Floating shelf FAQs

Can I fit a floating shelf without drilling?

It is not recommended if the shelf will carry real weight. For a secure fixing you always need a drill and a mechanical fixing, which is the only way to make sure the shelf stays stable in the long term. No-drill options (high strength adhesive) are meant for much lighter items, such as a towel holder, not for a shelf with books or decorative objects.

Which fixing do I need for plasterboard?

A cavity fixing rated for the load, such as a spring toggle or hollow wall anchor, which spreads the weight across the board instead of relying on the plug alone. If you can find a stud with a detector, even better: it is the strongest point in the whole wall.

Can I hang a heavy shelf on plasterboard?

Yes, as long as you use the right fixing and, where possible, fix into a stud rather than just the board. Without that support, plasterboard on its own does not spread heavy loads well and the fixing can give way over time, even if it seems to hold at first.

How do I drill into plasterboard without damaging it?

Use a thin drill bit to mark the exact point before switching to the final bit, and drill at a moderate speed without hammer action so the board does not crack around the hole. If the drill moves through with almost no resistance at one spot, you are probably between studs, so check the position before carrying on.

Can I remove a floating shelf from plasterboard without leaving a big hole?

Yes. Once you take the fixing out, you are left with the plug holes, the same size as when you fitted it. It is minimal damage and easy to cover with a little filler if you ever change your mind or move.

Why is my floating shelf sagging?

Usually because it carries more than its rated weight or the bracket is not firm enough. Remove the load, check the fixings and the level, and spread the weight more evenly.

Is fitting the Brera different from the Bergamo or the Torino?

The process is the same for every Kaimok shelf: identify the wall, choose the fixing, level up and fix the bracket. Only the recommended maximum weight changes, depending on the material and the model.

Once you have identified the wall and chosen the right fixing, fitting a floating shelf is a half hour job, not a renovation. If you are still unsure which one to choose before fitting it, take a look at our guide to floating shelves or shelves on legs: which to choose or the complete guide to wall shelves, room by room.

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