Start With What You Already Have

You do not need a £600 chair or an electric standing desk to work comfortably. Most of the adjustments that make the biggest difference to your neck, shoulders and lower back can be made with things already sitting in your home: a stack of books, a spare cushion, a box file, a rolled-up tea towel. Before you spend anything, spend twenty minutes seeing how far you can get with what is in the next room.

Start by measuring. A standard UK dining table sits at roughly 75cm from floor to surface, and a typical desk is much the same. That is fine for your forearms, but it means your chair is doing most of the work. Take a photo of yourself from the side while you work — it is far more revealing than how you think you are sitting.

Get Your Chair Height Right

Chair height comes first because everything else hangs off it. Raise or lower the seat until your elbows sit at about 90 degrees and your forearms are level with the desk surface, not sloping up or down. Your thighs should be roughly parallel to the floor, with hips very slightly higher than your knees — that takes pressure off the lower back.

If your feet no longer reach the floor once the chair is raised, do not slide forward and let your legs dangle. That is what causes the numb thighs and aching calves by late afternoon. Build a footrest instead: a box file, a sturdy stack of hardbacks, or a plastic storage crate turned on its side works well. Aim for a surface that puts your feet flat with your knees at roughly a right angle.

• Cushion: a firm cushion or folded towel under your sit bones can add 2–3cm of height.
• Lumbar support: a rolled tea towel or small cushion tucked into the small of your back restores its natural curve.
• Seat depth: you should fit two or three fingers between the back of your knees and the edge of the seat. If not, a cushion behind you will pull you forward.

Position Your Screen Properly

Screen position is where most home setups go wrong, usually because a laptop screen is far too low and far too close. The top of the screen should sit at or just below eye level, and the screen itself should be roughly an arm's length away — around 50–70cm — so your eyes are not straining.

For a desktop monitor, a couple of thick hardbacks or a ream of A4 under the base (about 5cm) is often enough to lift it. For a laptop, the same trick works: raise it on books, then plug in a separate keyboard and mouse if you have them. If you only have the laptop keyboard, compromise — tilt the screen back slightly, keep the machine closer, and take more frequent breaks.

Tilt the screen back a touch, around 10–20 degrees, so it faces you rather than standing bolt upright. Angle it so windows are to your side rather than directly behind or in front of you; glare is the quiet reason many people lean forward and squint without realising.

Sort Out Your Keyboard and Mouse

Your keyboard should sit close enough that your elbows stay by your sides, not stretched out in front of you. Keep it flat, or raise the back edge very slightly so it slopes gently away from you — the reverse of the little feet most keyboards have. Wrists should be straight and floating, not resting on a pad while you type.

Keep the mouse within easy reach, ideally close to the keyboard. If you have to stretch or lift your elbow to use it, your shoulder will complain by mid-afternoon. And if you use a laptop with a separate keyboard, a cheap second-hand mouse is one of the best small purchases you can make.

Light, Air and Small-Space Tweaks

Good light is part of ergonomics, not a separate concern. Position a lamp so it lights your work without shining into your eyes or bouncing off the screen. Natural light from the side is ideal.

In a small flat or a shared room, a folding table, a slim console, or even an ironing board on its lowest setting can serve as a desk and then disappear. Keep the surface clear: one box file for papers, a mug, a notebook and a pen. Cables are easier to live with if you loop them once and clip them to the back edge of the desk.

Move every twenty minutes or so. Stand up, roll your shoulders, look at something across the room. The 20-20-20 rule is a useful habit: every twenty minutes, look at something twenty feet away for twenty seconds.

Your Ten-Minute Setup Check

• Chair raised so elbows are at 90 degrees and forearms level with the desk.
• Feet flat on the floor, or on a box-file footrest.
• Screen top at eye level, an arm's length away, tilted back slightly.
• Keyboard close and flat, wrists straight, mouse within easy reach.
• A rolled towel supporting your lower back.
• Light from the side, with no glare on the screen.
• A reminder to stand and stretch every half hour.

None of this costs much, and most of it costs nothing at all. Try one change at a time, see how your shoulders and neck feel after a few days, and adjust from there. A comfortable desk is not about the equipment you buy — it is about how your body sits in the space you already have.