How to stop office chair from sinking

If you’ve ever experienced the frustration of your office chair slowly sinking beneath you while you’re trying to work, you’re not alone. This common issue can be not only bothersome but also detrimental to your productivity and overall comfort. Fortunately, there are several effective ways to stop your office chair from sinking, and in this comprehensive guide, we’ll explore various methods to keep your chair at the right height.

Check for Leaks

The first step in preventing your office chair from sinking is to identify the source of the problem. Most office chairs are equipped with a pneumatic gas lift cylinder, and over time, these cylinders can develop leaks. To check for leaks, carefully inspect the cylinder for any visible damage, including cracks or holes. If you spot any damage, it’s time for a replacement.

Adjust the Chair’s Height

Sometimes, your office chair might appear to be sinking when, in reality, it’s not correctly adjusted to your preferred height. Ensure that you’ve correctly adjusted your chair to your desired level before assuming there’s a problem. The adjustment mechanism is typically located underneath the seat, and turning it in the right direction should raise your chair to the appropriate height.

Replace the Gas Lift Cylinder

If you’ve identified a leak in the gas lift cylinder, you’ll need to replace it. Replacing the cylinder is a straightforward process, and you can usually find compatible replacement cylinders online or at your local office supply store. Carefully follow the manufacturer’s instructions for installation to ensure your chair is good as new.

Use a Chair Saver Kit

A chair saver kit is a simple and cost-effective solution to prevent your office chair from sinking. These kits typically include a support ring and an adjustable clamping mechanism that reinforces the chair’s structure. By placing the support ring beneath the chair’s seat and clamping it in place, you can help distribute weight evenly and maintain your chair’s height.

Lubricate the Cylinder

Sometimes, your chair may not be sinking due to a leak, but rather because the gas lift cylinder has become stiff or stuck. To remedy this, apply some lubricant to the cylinder’s moving parts. This can help reduce friction and ensure smoother, more stable height adjustments.

Tighten Loose Screws and Bolts

Over time, the constant adjustments and movements of your office chair can lead to loose screws and bolts. These can affect the chair’s overall stability and cause it to sink unexpectedly. Regularly inspect your chair for any loose hardware and tighten them as needed to maintain a firm and stable seat.

Reinforce the Chair’s Base

Another common reason for office chairs sinking is a weakened base. If you notice your chair leans to one side, it’s a sign that the base may be compromised. To reinforce it, you can use an epoxy adhesive or metal brackets to secure any loose or wobbly components.

Replace Worn-out Casters

Sometimes, the issue may not be with the chair’s height adjustment but with its casters. Worn-out or damaged casters can cause your chair to tilt or sink. Inspect the casters and replace them if they are damaged, ensuring that they are of the correct type and size for your flooring.

Invest in a High-Quality Chair

Prevention is often the best solution. If your office chair constantly sinks or has multiple issues, it may be time to invest in a high-quality chair that’s built to last. Look for chairs with sturdy construction, reliable components, and a long-lasting gas lift cylinder to avoid future sinking problems.


A sinking office chair can be a real nuisance, disrupting your work and causing discomfort. However, with the right approach, you can prevent this issue from plaguing your workday. Whether it’s checking for leaks, adjusting your chair correctly, or making simple repairs, taking action can help you enjoy a stable and comfortable seating experience. By following the steps outlined in this guide, you’ll be well on your way to ensuring your office chair remains at the perfect height, allowing you to focus on your work and not your sinking seat.