Why Old British Floorboards Squeak

If you live in a Victorian terrace, a Georgian townhouse or a 1930s semi, you will almost certainly have encountered a floorboard that announces your every step. That creak is rarely a sign of anything sinister. In older homes, floorboards were usually laid over joists and nailed down with cut or wire nails. Over decades — sometimes centuries — those nails loosen, the boards cup slightly as they dry out, and the timber shrinks away from its fixings. Add central heating cycling on and off and you have the perfect recipe for movement.

The squeak itself is friction: board against board, board against nail, or board against joist. The good news is that most squeaks can be silenced in an afternoon, without lifting the whole floor and without damaging the original pine, oak or elm boards that give a period property so much of its character.

First, Find the Culprit

Before you reach for a hammer, work out exactly where the noise is coming from. Squeaks rarely originate directly under your foot; they usually lie a few inches away where the board meets its neighbour or crosses a joist.

• Walk slowly across the floor in bare feet or socks, pressing down with your heel rather than your toes. This puts weight on a single spot at a time.
• Ask someone else to walk the floor while you listen from below, if you have access to a cellar or the ceiling of the room beneath. The sound will lead you straight to the problem board.
• Mark the spot with a strip of low-tack tape, then mark again from the other direction. Where the two marks cross is your target.
• Once you think you have it, press down firmly with the flat of your hand. If the squeak stops, you have found it. If it continues, move a hand's width along the board and try again.

On a traditional floor you are looking for gaps between boards, a slight bounce underfoot, or a nail head sitting proud of the surface. Any of these is a clue.

Tightening Loose Boards from Above

The least invasive fix is to re-secure the board to the joist beneath it. Period floorboards are usually fixed with cut nails, and driving a new one alongside an old one can split the timber, so take care.

• Use a nail punch to drive any proud original nails back below the surface. This alone sometimes cures the creak.
• For a fresh fixing, drill a pilot hole slightly narrower than your nail, then drive a 50mm or 65mm lost-head nail at a slight angle into the joist. Angling the nail — a technique called toenailing — pulls the board tight as it goes in.
• Better still for old timber, use a screw. A 4.5mm by 50mm screw with a countersunk head holds far more securely than a nail and can be removed later without wrecking the board. Drill a pilot hole, countersink it, drive the screw just below the surface, and fill with a wax filler stick in a matching shade.
• Always fix into a joist, not just into the board alongside. You can find joists by looking for the line of existing nails, or by tapping across the floor and listening for the solid thud of timber rather than the hollow ring of a void.

If your boards are visible and you want to keep them that way, work patiently and fill every hole. A well-repaired pine floor takes wax filler almost invisibly.

Talcum Powder and Other Dry Lubricants

For a squeak caused by two boards rubbing together rather than moving up and down, you do not always need to fix anything at all. A dry lubricant worked into the gap can silence it for years.

• Talcum powder is the traditional remedy. Sprinkle it generously along the joint, then work it in with a stiff brush or by walking over the area in socks for a few minutes.
• Graphite powder does the same job and lasts longer, though it is dark and best reserved for floors you plan to paint or cover.
• Be cautious with oils, waxes and silicone sprays. They can stain bare boards, attract grit, and make future finishing or filling almost impossible. Keep them for painted floors only.
• After treating, vacuum up the excess so it does not work its way into the room or mark dark floor coverings.

This method is ideal for a rental or for boards you are not ready to lift, but treat it as a treatment rather than a cure. If the movement is significant, the powder will eventually work its way out.

Using Wooden Shims and Packers

Where a board dips or bounces because the joist beneath has shrunk or dropped, a shim takes up the slack. This is the fix for a floor that feels springy rather than noisy.

• Work from below if you can. Lift the floor from above only as a last resort, and number every board as you remove it so it goes back in the same place.
• Cut a hardwood or plywood wedge, tap it gently between the joist and the underside of the board until it is firm, then snap or trim it flush.
• Do not force a shim. If it takes real effort to drive in, it is too thick and you risk lifting the board or cracking a tongue.
• Fix the shim in place with a little wood glue so it cannot work loose and rattle later.

If you cannot access the underside, a thin sliver of wood driven into the gap from above and trimmed flush will often do the job, particularly where two boards meet over a joist.

Keeping Original Boards in Good Order

Once the squeaks are dealt with, a little maintenance keeps them away. Keep indoor humidity reasonably stable — sudden swings in moisture are what move old timber most. Avoid over-sanding original boards; every sanding removes a century of patina. Where you have had to lift boards, replace the nails with screws and always refit in the original order.

Above all, treat the floor as part of the building's history. A few creaks are not a fault to be eradicated at all costs. Silence the ones that irritate you, secure the ones that move, and leave the rest to settle as they have for the last hundred years.