Introduction
Buying an ergonomic office chair is a great first step, but simply owning one doesn’t guarantee a comfortable workspace.
Many people never adjust their chair after assembling it, meaning they miss out on features designed to improve comfort during long hours of sitting.
Fortunately, setting up an ergonomic office chair is usually quick and straightforward.
In this guide, we’ll explain how to adjust your office chair properly so you can create a more comfortable workstation that supports your daily work routine.
Quick Answer
For a comfortable office chair setup:
| Adjustment | Recommendation |
| Seat Height | Feet flat on the floor with knees approximately level with hips |
| Seat Depth | Leave a small gap behind your knees |
| Lumbar Support | Supports the natural curve of your lower back |
| Armrests | Elbows close to a 90° angle with relaxed shoulders |
| Backrest | Supports your back while allowing natural movement |
| Monitor Height | Top of the screen at or slightly below eye level |
Remember, even the best chair works best when combined with regular movement throughout the day.
1. Adjust the Seat Height
Start with the seat height because it affects your overall sitting position.
When seated:
- Feet should rest flat on the floor.
- Knees should be approximately level with your hips.
- Thighs should be comfortably supported.
If your feet don’t reach the floor comfortably, consider using a footrest.
2. Adjust the Seat Depth
Seat depth determines how much of your thighs are supported.
A good fit usually leaves a small gap between the front edge of the seat and the back of your knees.
This helps prevent unnecessary pressure while maintaining support.
3. Position the Lumbar Support
Most ergonomic chairs include lumbar support for the lower back.
Adjust it so it fits comfortably into the natural curve of your lower back.
It should provide gentle support rather than pushing you too far forward.
4. Adjust the Armrests
Your armrests should allow your shoulders to stay relaxed while working.
When typing:
- Elbows should remain close to your body.
- Forearms should be roughly parallel to the floor.
- Wrists should stay relatively straight.
If the armrests prevent you from sitting close to your desk, lower or adjust them if possible.
5. Adjust the Backrest
Your backrest should support your entire back while allowing small posture changes throughout the day.
If your chair reclines, use the feature when reading, attending meetings or taking short breaks.
Changing positions regularly is generally more comfortable than remaining perfectly upright all day.
6. Position Your Monitor
Even the best office chair won’t feel comfortable if your monitor is poorly positioned.
A good starting point is:
- Top of the monitor at or slightly below eye level.
- Screen about an arm’s length away.
- Monitor centred directly in front of you.
If you’re using a laptop, a laptop stand with an external keyboard and mouse may improve your setup.
7. Keep Your Keyboard and Mouse Close
Your keyboard and mouse should be positioned so you don’t need to reach forward repeatedly.
Keeping them close allows your shoulders to stay relaxed and your elbows close to your body.
8. Change Positions Regularly
No sitting position remains comfortable forever.
Throughout the day, remember to:
- Stand up regularly.
- Walk for a few minutes.
- Stretch.
- Change sitting positions occasionally.
Movement is an important part of a comfortable workday.
Common Setup Mistakes
Chair Too High
If your feet don’t rest comfortably on the floor, lower the chair or use a footrest.
Ignoring Lumbar Support
Many people never adjust the lumbar support, even though it’s one of the chair’s most valuable ergonomic features.
Monitor Too Low
Looking downward for long periods may become uncomfortable.
Raise the monitor if needed.
Remaining in One Position
Even a perfectly adjusted chair isn’t designed for continuous sitting.
Regular movement remains important.
Frequently Asked Questions
What is the correct sitting position?
Sit with:
- Feet flat on the floor.
- Knees approximately level with your hips.
- Relaxed shoulders.
- Back supported by the chair.
Should my chair recline?
Yes.
Using the reclining feature occasionally allows you to change positions and may improve comfort during reading or meetings.
Do I need a footrest?
Not everyone does.
If your feet don’t rest comfortably on the floor after adjusting the chair height, a footrest may help.
Should I adjust my chair every day?
Not necessarily.
However, it’s worth checking your setup if your workstation changes or you begin feeling uncomfortable.
Can an ergonomic chair prevent discomfort?
A properly adjusted chair can improve comfort, but regular movement, stretching and good workstation ergonomics remain important.
Conclusion
An ergonomic office chair works best when it’s adjusted to fit your body and workstation.
Simple adjustments to seat height, lumbar support, armrests and monitor position can make a noticeable difference in comfort during long work sessions.
Remember that the goal isn’t perfect posture.
The goal is to create a workspace that supports comfortable movement throughout the day.
If you’re still comparing office chairs, explore our Best Office Chairs (2026) guide to see our top recommendations for different budgets and workspace needs.