Last reviewed: 1 August 2026 by the Ozbuyz Store Editorial Team.
Quick answer: Choose a chair that adjusts to the user, desk and work tasks. Check seat-height range, seat depth, back and lumbar adjustment, armrests, tilt controls, stability, load rating and ease of operation. Then adjust the complete workstation and change posture regularly.
A chair cannot make prolonged, static sitting harmless. Safe Work Australia and Comcare recommend fitting the workstation to individual needs and managing sedentary work and awkward or sustained postures.
Start with the work and user
- hours and pattern of computer use
- keyboard, mouse, phone, documents and multiple screens
- desk height and available leg space
- user height, build and mobility needs
- shared or single-user workstation
- floor surface and movement space
Where pain, disability or specialised needs are involved, an ergonomic or health professional assessment may be appropriate.
Chair features to compare
| Feature | Useful check |
|---|---|
| Seat height | Range allows feet to be supported and shoulders relaxed at the desk; a footrest may be needed |
| Seat depth | User can sit against the backrest without pressure behind the knees |
| Backrest and lumbar | Height, angle or support can fit the user’s back rather than forcing one fixed curve |
| Armrests | Support forearms without lifting shoulders or preventing close access to the desk |
| Tilt and recline | Controls are understandable, stable and adjustable for the user |
| Base and castors | Stable base and castors suited to the floor and task |
| Load and dimensions | Stated limits and usable dimensions suit the intended person |
Avoid universal angles and finger-gap rules
Right angles and finger gaps can be useful visual prompts, but they are not precise requirements for every body. Comcare’s current guide suggests relaxed shoulders, supported lower back, forearms slightly angled down towards the keyboard and thighs slightly angled down, with the monitor at a comfortable reading distance. Adjust for comfort, task and professional advice.
Upholstery and construction
Mesh, fabric and coated upholstery each vary in quality. Compare support, breathability, cleaning, abrasion information, replaceable components and warranty. A category label such as “gaming” or “executive” does not establish ergonomic performance.
Set up the complete workstation
- Adjust the chair to the desk and user.
- Support feet with the floor or a suitable footrest.
- Keep keyboard and mouse close enough for relaxed shoulders.
- Position the main screen directly ahead at a comfortable reading distance, commonly around arm’s length.
- Set screen height around eye level or slightly below, adjusted for the user and eyewear.
- Reduce glare and use readable display settings.
- Move and change posture regularly.
Trial and returns
Where possible, trial the chair long enough to use the adjustments. For online purchases, confirm assembly, change-of-mind terms, return freight, repackaging and whether a used chair can be returned. Keep the instructions because controls are often used incorrectly.
Compare office and desk chairs and the broader office collection.
Frequently asked questions
What is the most important office-chair feature?
There is no single feature. The chair must adjust as part of the user’s full workstation, with seat height, depth, back support and controls all fitting the task.
Is mesh better than fabric?
Not universally. Compare support, temperature, cleaning and durability for the individual models.
Should knees be exactly 90 degrees?
No exact angle fits everyone. Aim for supported feet, comfortable thighs and no pressure behind the knees, then adjust the desk and equipment.
Are gaming chairs suitable for office work?
Some are and some are not. Judge adjustability, dimensions, support and trial conditions rather than styling.
Can an office chair prevent back pain?
No chair can guarantee this. Workstation adjustment, movement, workload and individual health all matter. Seek health advice for persistent symptoms.
Research and review method
This guide was reviewed against current Safe Work Australia, Comcare and WorkSafe Queensland workstation guidance.