My hallway announced every midnight bathroom trip. Creak at the threshold. Creak two steps in. Creak outside the bathroom door. My toddler woke up three times a week. I started walking on the edges of the floorboards like a burglar in my own home.

Baby powder fixed the worst spot. A screw fixed the second worst. Now I can walk to the bathroom at 3am without waking anyone.

Diagnose Where the Squeak Comes From

A squeak happens when two surfaces rub together. In floors, it is usually the floorboard rubbing against the subfloor or against a neighboring board. The nail that was holding it tight has loosened over years of foot traffic. The board shifts slightly under weight and the friction makes noise.

Walk slowly over the squeaky area and mark the exact spots with painter’s tape. Have someone else walk while you listen from below if you have access to the basement or crawl space. You are trying to identify exactly which board is moving.

The Baby Powder Trick — For Gaps Between Boards

If two adjacent floorboards are rubbing against each other, sprinkle baby powder or talcum powder along the seam between them. Work it into the crack with a soft brush or your finger. The powder acts as a dry lubricant. It fills the microscopic gaps and prevents the friction that causes the squeak.

Wipe away the excess powder from the surface. Walk on the spot. If it is still squeaking, repeat. This works on maybe 70% of squeaks between boards.

The Screw Method — For a Board Pulling Up From the Subfloor

If you have access from below — basement or crawl space — have someone stand on the squeaky spot while you are underneath. You will see the subfloor gap appear when weight is applied. Drive a short wood screw through the subfloor into the hardwood above, at an angle, missing the face of the floorboard. This pulls the board back down tight.

If you do not have access from below, use breakaway screws designed for hardwood floors. You drive them through the top of the board, then snap off the head below the surface. Fill the tiny hole with wood filler that matches your floor color. This is more invasive but solves the problem permanently when baby powder cannot.

When to Call a Professional

If the squeak is widespread — a whole room, or most of a hallway — the subfloor may be failing. Tightening a few boards will not fix a structural problem. At that point you are looking at pulling up flooring and re-securing the subfloor. That is a weekend project for someone who knows what they are doing.