ᐅ Why does the wooden floorboards creak despite regular maintenance?

Hello everyone, I’m currently dealing with a rather persistent problem: Why does my Billy bookshelf squeak despite regular, careful maintenance? I have oiled the wood several times, checked the screws, and even realigned the shelves – yet I still hear this annoying squeaking, especially when I place something on it or cause slight movements to the unit.

I’m particularly interested in whether there are mechanical causes that are difficult to fix even with thorough maintenance, or if I might be overlooking something in the care process. Environmental factors might also play a role (humidity, temperature changes, etc.). Has anyone had similar experiences or can offer advice on how to stop this squeaking permanently?

masar schrieb:
Why does my Billy shelf squeak despite regular, careful maintenance?

First, it’s important to understand how the Billy shelf is constructed and what kind of mechanical movements are possible. The joints between wood and metal, especially screws and dowels, are prone to slight movements that can cause noise.

Even if you have checked all screws, it’s crucial to set their tightness just right. If tightened too much, they can compress the wood and cause cracks or stress; if too loose, they allow movement and thus squeaking.

Material properties also play a role: chipboard, which most of the Billy shelves are made from, is sensitive to humidity and temperature changes. Over time, the material can slightly expand or contract. These micro-movements then cause sounds, even if the furniture appears fine externally.

My recommendation: check the screws with a torque wrench, pay attention to whether certain areas of the shelf are under stress, and try local treatment in specific spots with suitable lubricants or waxes to prevent friction.

What exact care products have you used so far?

Thank you, Dilen, for the detailed explanation! Regarding the maintenance products: I use a commercially available furniture oil based on linseed oil, which I apply thinly every 3-4 months. I check the screws with a regular screwdriver, but I don’t use a torque wrench.

I can imagine that it might be related to the material properties, especially since I often have dry heating air in the apartment during winter. How would you recommend proceeding if I want to use suitable replacement screws or a lubricant? And which areas of the shelf should I pay particular attention to?

Also: Could the squeaking be caused by the shelf being placed on a slightly uneven floor?

Dilen schrieb:
Particleboard is sensitive to humidity and temperature

This is a very important point that I would like to add here. Particleboard, like the kind commonly used in Billy furniture, behaves differently from solid wood. It is more susceptible to warping caused by changes in humidity—especially when heated indoor air in winter dries out the atmosphere. This leads to shrinkage, which can create stresses within the structure. These stresses cause friction at the joints, which results in squeaking.

The fasteners connecting the individual boards are often made of plastic or thin metal, which can wear out over time and allow for more movement.

My advice would be to also check the base panel on which the shelf stands. Even a slight unevenness can cause stress that manifests as noise. Felt or rubber washers could help here.

If you have already tightened the screws multiple times, it is possible that the threads in the wood have worn down, causing additional movement.

Here’s a brief summary of what to specifically look out for when dealing with a squeaky Billy:

1. Screws & Connections:
- Tighten screws with a consistent torque.
- Avoid overtightening, as wood threads can get damaged.
- Check any plastic dowels, as they may become brittle and cause noise.

2. Surface Treatment:
- Furniture oil works well, and a wax finish can help reduce friction on moving parts.

3. Environment:
- Monitor humidity and temperature.
- Dry heating air in winter can cause tension.

4. Floor & Stability:
- Compensate for unevenness, e.g., with felt pads or small shims.

5. Load & Stress:
- Excessive or uneven loads can worsen the problem.

I recommend first tightening the screws with a torque wrench to about 2-3 Nm (1.5-2.2 ft-lb). If the shelf is older, the screw or dowel threads might be damaged—replacing them with high-quality ones can help. I have had good experiences doing this myself.

Additional tip: Before retightening, lightly treat the screws and contact points with paraffin wax or silicone spray to reduce friction. Apply sparingly and only at specific points!

blapau schrieb:
Also check the base slab on which the shelving unit stands

I underestimated the floor issue a bit – the shelving is actually standing on a slightly uneven laminate floor, so I will try using rubber pads there.

I will get a suitable torque wrench based on the recommendations – thanks for the tips!

What I’m still wondering about is: How long does it typically take for moisture fluctuations to affect the material enough to cause these squeaking tensions?

I have had the shelving unit for about 5 years already, but I haven’t had any noise problems so far, which is probably explained by the heating season?