Why is My Office Chair Sinking?

If you’re wondering why your office chair is sinking, it’s likely due to a few different factors. We’ll go over what causes chairs to sink and what you can do to fix it.

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If your office chair is sinking, it may be due to a variety of reasons. The most common reason is that the gas lift mechanism inside the chair has become damaged and needs to be replaced. Another possibility is that the base of the chair has become worn down, causing it to sink. Finally, it’s also possible that the seat itself has become compressed and needs to be replaced.

If you’re not sure what’s causing your office chair to sink, we recommend taking a look at the gas lift mechanism and base first. If those don’t seem to be the problem, then it’s likely that the seat itself needs to be replaced.

What Causes an Office Chair to Sink?

One of the most common problems people have with their office chairs is that they start to sink. This can be extremely frustrating, especially if you have an otherwise comfortable chair. So, what causes an office chair to sink?

There are a few different reasons why your office chair might start to sink. One of the most common reasons is that the gas lift cylinder is losing pressure. This can happen over time as the seals inside the cylinder deteriorate. You may also find that your chair sinks if you sit in it for extended periods of time. This is because your body weight will eventually compress the foam in the seat, causing it to sink down.

If your chair is sinking, there are a few things you can do to try and fix the problem. One of the first things you should do is check the gas lift cylinder to see if it needs to be replaced. If the cylinder is damaged, it will need to be replaced in order to fix the problem. If your chair does not have a gas lift cylinder, you may need to replace the foam in the seat. This can be done by purchasing new foam from a local upholstery shop.

If you still can’t seem to fix your sinking office chair, it may be time to invest in a new one. There are a number of different office chairs on the market that are designed to prevent sinking. These chairs typically have a higher quality gas lift cylinder and thickerseat foam that helps to reduce body weight compression.

How to Fix a Sinking Office Chair

If your office chair is slowly sinking, there are a few possible reasons why. It could be that the gas lift is wearing out, the springs in the base are damaged, or the seat might be too soft. In any case, a sinking chair is not only uncomfortable, it can also be dangerous.

Here are a few tips on how to fix a sinking office chair:

1. Check the gas lift. If the chair is sagging at the front, it could be that the gas lift needs to be replaced. This is a relatively easy fix and can be done by most office furniture companies.

2. Check the springs in the base. If the chair is sagging at the back, it could be that the springs in the base are damaged or broken. This is a more difficult fix and will likely require professional help.

3. Check the seat. If the seat is too soft, it might be causing the chair to sink. Try replacing the seat with a firmer one or adding an extra layer of padding.

4. Check the weight limit. Some chairs have a weight limit that needs to be followed in order for them to stay up properly. If your chair is close to or exceeds its weight limit, this could be why it’s sinking. Try removing some of the weight from the chair by removing any unnecessary items from your desk area or switching to a lighter office chair altogether.


If your office chair is sinking, it is likely due to a faulty pneumatic cylinder. The best way to fix this issue is to replace the pneumatic cylinder. You can do this yourself by following some simple steps, or you can contact a professional furniture repair company to do it for you.

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