Few pieces of furniture affect daily comfort as directly as an office chair. For anyone spending several hours a day at a desk, whether working from home or in a traditional office, the chair beneath them plays a genuine role in posture, back health and overall energy levels throughout the day. Yet office chairs are so often chosen based on price or appearance alone, without much thought given to the ergonomic features that actually determine whether a chair supports the body properly over a full working day.
Choosing the right office chair doesn't need to be complicated, but it does require understanding a handful of adjustable features and how they relate to your own body and desk setup. This guide walks through exactly what to look for, so you can choose a chair that genuinely supports you, rather than one that simply looks the part.
Why Office Chair Choice Matters More Than People Expect
Sitting for extended periods places sustained pressure on the spine, hips and shoulders, and a poorly designed chair, or one that isn't adjusted correctly for your body, can compound this pressure over time. This is particularly relevant for anyone working from home, where a dining chair or an old chair repurposed from elsewhere in the house often ends up serving as the daily office seat, without any of the ergonomic support a genuine office chair is designed to provide.
The right chair won't eliminate the need for regular movement and breaks throughout the day, but it does significantly reduce the strain placed on your body during the hours you are seated, which matters enormously when that adds up to thirty or more hours a week for many people.
Step 1: Prioritise Adjustable Lumbar Support
Lumbar support is arguably the single most important feature in an office chair, since it supports the natural inward curve of the lower spine, preventing the slouched posture that develops when this area isn't properly supported over a long sitting session.
Look for a chair with adjustable lumbar support, ideally one that moves both in height and depth, allowing you to position the support exactly where your lower back needs it, rather than relying on a fixed curve that may or may not match your own body. Chairs without any lumbar support at all tend to force the lower back into a rounded position over time, which is one of the most common contributors to lower back discomfort among people who work at a desk for long hours.
Step 2: Check Seat Height and Depth Adjustability
A genuinely adjustable seat height is essential, since desk height and individual body proportions vary considerably from person to person. As a general guide, your feet should sit flat on the floor with your knees at roughly a 90 degree angle when seated, and your desk should sit at a height where your elbows also form a similar angle while typing.
Seat depth, meaning how far the seat extends from the backrest to the front edge, is a feature many budget chairs skip entirely, yet it makes a meaningful difference to comfort, particularly for shorter or taller individuals. Ideally, there should be a gap of around two to three finger widths between the back of your knees and the front edge of the seat once you're sitting with your back fully against the lumbar support. A seat that's too deep forces you to either sit without back support or have the front edge dig into the back of your knees, both of which create discomfort over a full day.
Step 3: Consider Armrest Adjustability
Adjustable armrests, ideally moving in height and width, allow you to position your arms so your shoulders remain relaxed rather than hunched or overly raised while typing. As a general guide, armrests should sit at a height that allows your shoulders to stay relaxed and your elbows to rest close to your body at roughly a 90 degree angle, rather than forcing your shoulders upward or requiring you to reach outward to use them.
Some higher end chairs also offer armrests that pivot or move inward and outward, which can be particularly useful for anyone whose desk setup requires reaching forward frequently, such as regular use of a mouse positioned slightly to the side of the keyboard.
Step 4: Choose the Right Material for Your Climate and Use
Office chair upholstery generally falls into two broad categories, mesh and fabric or leather-style upholstery, each with genuine trade-offs worth considering.
Mesh chairs offer excellent breathability, which is a significant advantage in Australia's warmer climate, particularly for anyone working in a home office without air conditioning for large parts of the day. Mesh also tends to mould slightly to the body over time, offering a reasonable balance of support and comfort for most body types.
Fabric and cushioned chairs tend to offer a softer, more plush feel initially, which some people find more comfortable for shorter sitting sessions, though they can feel warmer over a long day compared to mesh alternatives. Leather or faux leather chairs offer a more polished, executive look and are easy to wipe clean, though they share the same heat retention drawback as fabric options, and can feel less breathable during warmer months.
If your home office doubles as a shared space visible from the rest of the house, it's worth considering how the chair's material and colour work alongside the rest of your Office Furniture, since a chair that clashes visually with the desk and surrounding furniture can undermine an otherwise well considered room.
Step 5: Think About Recline and Tilt Function
A chair with adjustable recline tension, and ideally a locking mechanism at various angles, allows you to shift position throughout the day rather than remaining fixed in one upright posture for hours at a time. Regularly shifting position, even slightly, reduces the sustained pressure placed on any one part of the spine, which is genuinely beneficial over a long working day.
Some chairs also include a forward tilt function, which can be useful for tasks requiring you to lean toward the desk, such as detailed writing or close screen work, without compromising the lumbar support built into the backrest.
Step 6: Check the Base and Casters
The base of an office chair matters more than it might seem, particularly if the chair will sit on timber or tiled flooring rather than carpet. A five-point base with smooth-rolling casters offers the most stability, and it's worth checking whether the casters are suited to your specific flooring type, since standard casters designed for carpet can mark or roll poorly on hard flooring, while hard flooring casters can feel sticky or unstable on thick carpet.
If you're setting up a home office from scratch, our earlier guide on Best Lighting for a Home Office covers another equally important comfort factor worth addressing alongside your chair choice, since poor lighting and poor seating tend to compound each other's negative effects over a full working day.
Step 7: Understand Chair Lifespan and Warranty
A genuinely well made office chair used for a standard full-time working week typically lasts somewhere between seven and ten years before the foam, mechanisms or upholstery begin to noticeably degrade. Budget chairs, by comparison, often show signs of wear within two to three years, particularly in the seat foam and gas lift mechanism.
Checking the warranty period offered on a chair can be a useful proxy for build quality, since manufacturers offering longer warranties, typically five years or more on the mechanism and frame, are generally more confident in the chair's long-term durability.
Common Office Chair Buying Mistakes to Avoid
- Choosing a chair based purely on appearance without checking lumbar support and seat depth adjustability
- Assuming any chair labelled ergonomic will automatically suit your body without testing key adjustments
- Ignoring caster type relative to your specific flooring, resulting in a chair that rolls poorly or damages timber floors
- Prioritising a soft, plush initial feel over genuine long-term support, which often results in the opposite experience after a few months of daily use
- Overlooking warranty length as a useful indicator of build quality and expected lifespan
Final Thoughts
Choosing an office chair comes down to prioritising genuine ergonomic adjustability, lumbar support, seat depth, armrest height, over appearance or initial plushness alone. Given how many hours a week most people spend seated at a desk, it's a purchase worth taking seriously rather than treating as an afterthought once the desk itself is chosen. Get the fundamentals right, and a good office chair can genuinely improve both comfort and posture for years of daily use.
Explore the full Office Chairs range to find a chair suited to your body, your desk and your working day.
