What should I put on a squeaky floorboard?
What should I put on a squeaky floorboard?
Talc, graphite or powdered soapstone worked into the joint as a stopgap — the real fix is screwing the board down to the joist.
A squeak is a symptom of movement: either two board edges rubbing, or a board lifting and dropping on a nail as weight passes over it, or a joist moving against a plate. Powder addresses only the first, which is why it works instantly on some floors and does nothing on others. Locating the source is the useful step — have someone walk while you listen from below or with an ear to the floor — because a nail squeak needs a screw beside it and a rubbing edge needs powder or a shim. Never use a liquid lubricant: it penetrates the timber, migrates through the finish and permanently contaminates the surface for any future refinishing.
The options, ranked
| Option | Good at | Bad at |
|---|---|---|
| Talcum powder or powdered graphite | Works into the gap between boards and separates the rubbing edges, silencing the squeak in minutes. | Temporary; it works its way out and the squeak comes back in weeks or months. |
| Screws into the joist | The permanent fix, because the squeak is movement and a screw stops movement. | Visible fixings, and you must know where the joists, cables and pipes run. |
| Shims and adhesive from below | Invisible from above, and the best option where there is access to the underside. | Only possible with a cellar, a crawl space or an accessible ceiling void. |
| Oil or spray lubricant | Nothing. | Soaks into the timber, stains, wicks through to the finish and makes any later glue or finish fail. |
Technique that changes the outcome
- Find the exact spot first: get someone to walk while you listen
- Work talc or graphite into the joint with a brush, then wipe the surface
- Screw through the board into the joist, countersunk and filled, for a permanent fix
- From below, drive a screw up through the joist into the board, or glue a shim into the gap
What goes wrong
- Any oil or spray lubricant on floorboards
- Driving a nail — nails work loose again, which is what caused the squeak
- Screwing blind without checking for cables and pipes under the floor
Compiled practical guidance rather than a published standard. Product formulations vary by brand and market, so read the label — and where the work is structural, electrical or gas, the regulations that apply where you are govern rather than anything here.
Other lubricant questions
| For | Use |
|---|---|
| A bike chain | Wet lube for wet conditions, dry lube for dry and dusty ones, wax if you want the cleanest and lowest-friction option — and not a general penetrant. |
| A lock | A dry lubricant — powdered graphite or a PTFE spray. Oil and general penetrating sprays gum locks up and are the classic way to ruin one. |
| A squeaky door hinge | A drop of light machine oil or a smear of white lithium grease on the pin — and lift the pin out to clean it, which is usually the actual fix. |
| A seized bolt | A dedicated penetrant or a 50/50 acetone and automatic transmission fluid mix, plus time, heat cycles and shock — and anti-seize on reassembly. |
| A sticky drawer | Paraffin wax or beeswax on wooden runners, dry PTFE on metal ones — and never oil on wood. |
| Rubber seals | Silicone grease on most rubbers, and a PTFE or fluorosilicone product on silicone rubber itself — petroleum products swell and destroy natural rubber and EPDM. |
| A garage door | White lithium grease or a garage-door lubricant on rollers, hinges, springs and bearings — and not on the track, which should be clean and dry. |
Common questions
- What should I put on a squeaky floorboard?
- Talc, graphite or powdered soapstone worked into the joint as a stopgap — the real fix is screwing the board down to the joist.
- What should I avoid?
- Any oil or spray lubricant on floorboards Driving a nail — nails work loose again, which is what caused the squeak Screwing blind without checking for cables and pipes under the floor
Related pages
- Which lubricant should I use on a bike chain? Wet lube for wet conditions, dry lube for dry and dusty ones, wax if you want the cleanest and lowest-friction option — and not a general penetrant.
- Which lubricant should I use on a lock? A dry lubricant — powdered graphite or a PTFE spray. Oil and general penetrating sprays gum locks up and are the classic way to ruin one.
- Which lubricant stops a squeaky door hinge? A drop of light machine oil or a smear of white lithium grease on the pin — and lift the pin out to clean it, which is usually the actual fix.
- Which penetrating fluid frees a seized bolt? A dedicated penetrant or a 50/50 acetone and automatic transmission fluid mix, plus time, heat cycles and shock — and anti-seize on reassembly.
- What should I put on a sticky drawer? Paraffin wax or beeswax on wooden runners, dry PTFE on metal ones — and never oil on wood.
- Which lubricant is safe on rubber seals? Silicone grease on most rubbers, and a PTFE or fluorosilicone product on silicone rubber itself — petroleum products swell and destroy natural rubber and EPDM.
- Which lubricant should I use on a garage door? White lithium grease or a garage-door lubricant on rollers, hinges, springs and bearings — and not on the track, which should be clean and dry.
Sources
- Typical range compiled from manufacturer specifications — At One Place