How to Choose an Ergonomic Chair

Choosing the right ergonomic chair is one of the most important investments you can make in your health and productivity. With so many options available, it can feel overwhelming. This guide breaks down the key factors to consider before you buy.

1. Seat Height Adjustment

The most fundamental adjustment on any chair is seat height. Your feet should rest flat on the floor with your knees bent at approximately 90 degrees. Most quality ergonomic chairs offer a height range of 38–55cm, which suits the majority of adults. If you are particularly tall or short, check the specific range before purchasing.

2. Lumbar Support

The lower back (lumbar) region is the most common area affected by prolonged sitting. Look for chairs with adjustable lumbar support that can be moved up and down, and in some cases in and out, to match your unique spinal curvature. Chairs from brands like Grospol and Angel feature dynamic lumbar systems that move with you throughout the day.

3. Seat Depth and Width

The seat should be deep enough to support your thighs without pressing against the back of your knees. A gap of approximately two to four finger widths between the seat edge and the back of your knees indicates a good fit. Seat width should allow comfortable movement without feeling restricted.

4. Armrests

Adjustable armrests reduce tension in your shoulders and neck. Look for armrests that adjust in height, width, and ideally in depth (4D armrests). Your arms should rest naturally at a slight downward angle with shoulders relaxed and elbows at approximately 90 degrees.

5. Backrest Height and Tilt

A tall backrest provides full spinal support, including the upper back and shoulder area. Look for chairs with tilt-lock mechanisms that allow you to recline slightly, reducing pressure on the spinal discs. A recline angle of 100–110 degrees has been shown to minimise lower back load.

6. Headrest

If you spend long hours on the phone or in video meetings, a height-adjustable headrest can significantly reduce neck tension. Models like the Victor Mesh Chair and Chester Ergonomic feature independently adjustable headrests suitable for most adult heights.

7. Budget Guidance

Ergonomic chairs range from under £100 to over £1,500. As a general rule, chairs in the £150–£500 range offer a significant improvement over standard office chairs. For heavy daily use or users with existing back problems, investing £500–£1,000 in a clinical-grade ergonomic chair is often cost-effective in the long run.

Not sure which chair is right for you? Use our interactive Chair Finder Quiz on the homepage, or contact our team for a personalised recommendation.