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The Desk Ergonomics Guide for People Who Actually Work at Desks

Most ergonomic advice is furniture marketing. Three adjustments and one habit do the bulk of the work, and none of them require a new chair.

By The Work Survival Club Editorial TeamFact-checked against primary sources: The Work Survival Club Editorial TeamLast reviewed

The short answer

  • Screen top at roughly eye level, an arm's length away, directly in front of you.
  • Elbows near 90 degrees with forearms supported, keyboard flat and close to the desk edge.
  • Feet flat, thighs roughly level, lower back supported — a rolled towel counts.
  • Position matters less than movement: change posture every 20 to 30 minutes.
  • If you use display screen equipment at work in the UK, your employer must assess your workstation and pay for an eye test on request.

Start with the screen

Monitor height sets everything else. If the screen is low, the head drops forward, and the neck carries that weight for hours. Raise the top of the display to roughly eye level so your gaze falls slightly downward, and put it directly in front of you rather than off to one side.

Laptops fail this by design: the screen and keyboard are fixed together, so you cannot fix both. Either raise the laptop and add an external keyboard, or accept it as a short-session machine.

A stack of books and a twenty-pound keyboard beats a five-hundred-pound chair.

The chair and the rest of you

  • Height: feet flat on the floor, thighs roughly parallel to it. If your feet dangle, use a footrest or a box.
  • Back: hips to the back of the seat, lumbar curve supported. A cushion or rolled towel works if the chair has no support.
  • Arms: elbows at roughly a right angle, shoulders down. Armrests that force shoulders up are worse than none.
  • Keyboard and mouse: close to the desk edge, on the same level, so you are not reaching forward all day.
  • Documents: use a holder rather than flat on the desk, which pulls the neck down and sideways.

UK guidance for display screen equipment covers exactly these points, and it applies to home working as well as offices.

The part people skip: movement

No posture is good for four hours. Discomfort accumulates from static loading, not from a single wrong angle, which is why the best-set-up desk still hurts if you never leave it.

  1. 1Change posture every 20 to 30 minutes — stand, shift, or lean back deliberately.
  2. 2Leave the desk once an hour, even briefly. Take calls standing or walking.
  3. 3For eyes, look at something roughly six metres away for twenty seconds, several times an hour.
  4. 4Break up long sitting blocks with short activity rather than trying to buy it all back in the evening.

What your employer owes you

Under the Health and Safety (Display Screen Equipment) Regulations 1992, employers must assess DSE workstations, reduce risks, plan work so there are breaks or changes of activity, and provide an eye test on request for DSE users — plus basic corrective glasses if they are needed specifically for screen work.

Ask in writing and reference the workstation assessment. Most equipment refusals evaporate at that point, because the assessment is the employer's duty rather than a favour.

The framework

Eyes, Elbows, Feet, Clock

Four checks, in order. Run them once, then again in a month.

  1. 01

    Eyes

    Top of screen at eye level, arm's length away, directly ahead.

  2. 02

    Elbows

    Roughly 90 degrees, shoulders relaxed, keyboard flat and close.

  3. 03

    Feet

    Flat on floor or footrest, thighs level, lower back supported.

  4. 04

    Clock

    Posture change every 20 to 30 minutes, away from the desk hourly.

Questions people actually ask

Do I need an expensive ergonomic chair?
No. Adjustability matters more than price: seat height, back support and the ability to sit fully back. A cheap chair with a cushion and a raised monitor beats an expensive chair with a laptop on a kitchen table.
Are standing desks better?
They are better than sitting still all day and worse than moving. The benefit comes from alternating; a standing desk left at one height simply swaps one static posture for another.
Can my employer make me pay for equipment?
In the UK, employers must assess DSE workstations and reduce identified risks, including for home workers. Equipment needed to control an identified risk is the employer's responsibility, not yours.
What about wrist rests and ergonomic keyboards?
They help some people with specific symptoms and do nothing for others. Fix height, distance and breaks first, then trial accessories one at a time so you can tell what worked.
How long before a change should feel better?
Setup changes usually register within one to two weeks. Pain that persists beyond that, or that involves numbness, tingling or weakness, needs a clinician rather than another gadget.

Pick your next move

My back and neck hurtWhere the load actually goes when the screen is too low.I work from a laptopThe kitchen-table setup, and the cheapest way out of it.I want the ten-minute versionThree adjustments, books and a cushion, no shopping.

Practical tools

Discuss this on Reddit →

Sources

  1. HSE: Working with display screen equipment (INDG36) (opens in a new tab) — Regulator guidance on screen height, seating, breaks and workstation assessment for DSE users.
  2. HSE: Display screen equipment (DSE) workstation checklist and guidance (opens in a new tab) — Sets out employer duties to assess workstations, including for home workers, and to provide eye tests on request.
  3. Health and Safety (Display Screen Equipment) Regulations 1992 (opens in a new tab) — The UK statutory basis for workstation assessments, breaks or changes of activity, and eye and eyesight tests.
  4. NHS: How to sit correctly (opens in a new tab) — NHS positioning advice for seat height, back support and screen distance.

General information about work and health, not medical advice. See our medical disclaimer.