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Height adjustable sit-stand desks and ergonomic chairs at KOS Ergonomics

How to choose the right desk and sit-stand desk

A complete buying guide from KOS Ergonomics. Find out whether a sit-stand desk is right for you, what separates a stable, long-lasting desk from a wobbly one, how to size your workspace, and how to set the right height sitting and standing.

15 minute read Written by the KOS Ergonomics team Updated September 2026
  • 70–85% of time at work is spent sitting by office workers1
  • 82 mins less sitting a day after 12 months in a sit-stand desk trial1
  • ~1 hour less sitting a day over a year in a second BMJ trial (2022)2
  • 1991 the year KOS introduced sit-stand desks to Ireland

Your desk sets the height of everything you work with: your keyboard, mouse, screen and, indirectly, your chair. Get it wrong and you'll hunch, reach or shrug all day. Get it right, and especially if it lets you change position, and your whole workstation starts working with your body.

This guide covers every type of desk we supply, from compact home office desks to fully customisable electric sit-stand desks. Start with the table, then read on for what to check before you buy.

Desks at a glance

Desk type Best for Trade-offs Examples from KOS
Electric sit-stand desk (dual motor) Full-time desk work, back pain, multiple monitors, shared desks Higher upfront cost; needs a power socket Scandic-Desk, Elevate Desk
Compact sit-stand desk Home offices and smaller rooms Smaller desktop and lower weight capacity than a full-size frame KonSe KO1060
Adjustable home office desk Setting a fixed working height to suit you in a home office Not designed for switching between sitting and standing through the day Mobel Adapt
Fixed-height desk Occasional use, or where the chair and footrest can be adjusted to fit Can't adapt to different users or to standing Bourne Design Homeworkers Desk
Sit-stand desk converter Adding standing to an existing desk, or trialling sit-stand working Sits on top of your desk, raising keyboard height when seated ESS1 Standing Desk Converter
Executive desk Private offices and client-facing spaces Larger footprint Executive desks

Why choose a sit-stand desk?

Office-based workers are one of the most sedentary groups, spending 70–85% of their time at work sitting.1 A sit-stand desk makes it easy to break that up without leaving your work.

The evidence is encouraging. In the SMArT Work trial, published in The BMJ, office workers given sit-stand desks alongside support to use them sat for 82 minutes less per day after 12 months than a control group, with the effect building over time rather than fading. The researchers also reported signs of improved job performance and psychological health.1 A second BMJ trial in 2022 found a similar programme reduced sitting by about an hour a day over a year.2

Standing all day isn't the answer either

Prolonged standing is linked to lower back pain, leg discomfort and circulation problems such as varicose veins.3 The benefit of a sit-stand desk comes from changing position regularly, not from swapping one static posture for another.

A sit-stand desk is especially worth considering if you:

  • Sit for most of your working day
  • Experience lower back, neck or shoulder discomfort when sitting for long periods
  • Share a desk with colleagues of different heights, as each user can set their own height at the touch of a button
  • Are noticeably shorter or taller than average, so a standard 72–75cm desk doesn't suit you seated

What to look for in a sit-stand desk

Sit-stand desks can look almost identical online but perform very differently. These are the eight things our consultants check.

1Height range

The desk must go low enough for you to sit with relaxed shoulders and high enough to stand with your elbows at desk height. Shorter users need a low minimum; taller users need a high maximum.

Check: the minimum and maximum heights against your own seated and standing elbow height.

2Motor and lifting system

Dual-motor desks have a motor in each leg, giving smoother, more even lifting and higher weight capacity than single-motor or manual crank desks. Three-stage legs usually allow a wider height range than two-stage legs.

Check: dual motor for full-size desks and heavier setups.

3Stability at full height

Wobble is the most common complaint with cheaper desks, and it gets worse the higher the desk goes. It makes typing uncomfortable and monitors shake. Frame steel thickness, leg design and cross-bracing all make a difference.

Check: type and push gently on the desk at standing height. It should feel solid.

4Weight capacity

Add up everything on the desk: monitors, arms, laptop, docking station, under-desk storage and anything you lean on. Higher capacity also tends to mean a more robust frame that lasts longer.

Check: comfortable headroom above your total equipment weight.

5Speed and noise

If a desk is slow or loud, people stop adjusting it. A quick, quiet desk is one you'll actually use, particularly in shared offices.

Check: adjustment speed in mm per second and noise in decibels.

6Controls and memory

Memory presets let you jump straight to your sitting and standing heights. Some controls add Bluetooth app control, sit-stand reminders or anti-collision sensors that stop the desk if it meets an obstacle.

Check: at least two memory presets for shared or frequently adjusted desks.

7Desktop size and finish

Choose a size that fits your equipment with room to spare (see the sizing table below) and a matt, low-reflectance surface to avoid glare, which is also a DSE requirement.4

Check: depth of at least 80cm if you use a large or dual monitor setup.

8Build quality and warranty

Where and how a desk is made matters for the motors, electronics and frame. Look for a long warranty on the frame and motors, and a supplier who can service the desk.

Check: warranty length, what it covers, and country of manufacture.

Premium vs budget sit-stand desks

We've been testing sit-stand desks since 1991. Here's how our two most popular desks compare with a typical budget sit-stand desk, based on KOS testing and manufacturer specifications.

Feature Scandic-Desk Elevate Desk Typical budget desk
Lifting system Dual-motor electric Dual-motor electric Basic motor or manual crank
Weight capacity 130kg 120kg 50–70kg
Speed 38mm/sec 40mm/sec Around 20mm/sec
Noise Under 50dB Under 45dB 50–55dB
Stability Stable with multiple monitors Excellent stability Often wobbles at maximum height
Desktop options 1200–1800 x 800mm, 5 finishes, 3 frame colours 1200 x 800mm, custom options available Limited sizes, black or white
Controls Standard, Bluetooth app control or anti-collision options 4 memory positions Basic up and down
Made in Denmark Netherlands Usually mass-produced
Warranty 5 years 5 years Often 1 year

Choosing the right size

Measure your space first, then think about what goes on the desk. As a general guide, a desk of around 120cm wide by 80cm deep suits most single-user workstations, though this isn't set in the regulations.5 What matters is enough room to position your screen, keyboard and documents flexibly and to change position comfortably.4

Desktop width Suits Notes
120cm Laptop or single monitor, home offices The most common size for a compact but complete workstation
140cm Single large monitor with paperwork, or laptop plus monitor Extra room for documents and a phone or notepad
160cm Dual monitors Lets two screens sit side by side with the main screen central
180cm Multiple screens, drawing or reference materials Check room space and that the frame is rated for the extra weight
Check the clearance

With a sit-stand desk, check that nothing blocks it at full height, such as shelves, windowsills or radiators, and that cables are long enough to travel with the desk.

Setting the right desk height

The right desk height is based on your elbows, not a standard number. The same rules apply whether you're sitting or standing.

Correct desk height when sitting and when standing, with key setup points numbered Sitting Standing 1 2 3 4 1 2 3 5
  1. 1Desk at elbow height, forearms level, shoulders relaxed
  2. 2Top of the screen at or just below eye level
  3. 3Screen about an arm's length away
  4. 4Feet flat on the floor or a footrest when seated
  5. 5Supportive footwear and an anti-fatigue mat when standing
When you switch from sitting to standing, raise the desk and your screen should rise with it, keeping the same relationship to your eyes and elbows.
  1. Set your chair first Adjust your chair so your feet are flat and your thighs roughly level. See our chair buying guide for how.
  2. Set your seated desk height With shoulders relaxed and elbows bent at about 90 degrees, raise or lower the desk until the keyboard sits at elbow height. Save it as a memory preset.
  3. Set your standing height Stand tall in the shoes you usually wear, then raise the desk to elbow height again. Save this as your second preset.
  4. Adjust your screen Position the top of the screen at or just below eye level, about an arm's length away. A monitor arm makes this easy at both heights.

How to use a sit-stand desk

The biggest mistake people make is not using the standing function, or standing for hours at a time. Build up gradually and aim for regular changes of position throughout the day. A simple routine we recommend is the 20-8-2 pattern:

Repeat every half hour. Use the "move" time to stretch, walk or refill your water.

Tips for getting started

  • Start small. Begin with short standing periods and increase as your legs and feet adapt.
  • Use memory presets and reminders. The easier it is to change height, the more often you'll do it.
  • Stand on a mat, not a hard floor. An anti-fatigue mat and supportive shoes make standing far more comfortable.
  • Plan your tasks. Stand for phone calls, video meetings and reading; sit for detailed, intensive typing.
  • Listen to your body. If you feel discomfort, change position. Neither sitting nor standing should hurt.

Desk converters and home office desks

ESS1 standing desk converter

Sit-stand desk converters

A converter sits on top of your existing desk and lifts your screen and keyboard to standing height. It's a practical option if you can't replace your desk, work in a rented or shared space, or want to try sit-stand working first. Check that it's stable when raised, has room for your keyboard and mouse, and that your seated keyboard height is still comfortable once it's on the desk.

Mobel Adapt adjustable home office desk

Home office desks

If space is tight or you only work from home part of the week, a well-sized home office desk can work well. Choose one with enough depth for your screen to sit an arm's length away and, ideally, some height adjustment. If the height is fixed, pair it with a fully adjustable chair and a footrest so you can still get your elbow height right.

Accessories that complete the setup

A desk is only one part of the workstation. These additions make a sit-stand desk more comfortable and easier to live with.

Accessory Why it helps Explore
Monitor arm Sets your screen at the right height and distance and frees up desk space Single and multiple monitor arms
Anti-fatigue mat Cushions your feet and encourages small movements while standing Anti-fatigue matting
Cable tray Keeps cables tidy and moving safely with the desk as it rises Cable management
Under-desk drawer or laptop tray Adds storage that travels with the desk without cluttering the surface Scandic Secure Laptop Tray
Sit-stand or saddle chair Supports a perching position between sitting and standing HÅG Capisco Puls, BackApp 2.0
Footrest Supports your feet if a fixed desk means a higher seat Office Footrest K154

What Irish DSE regulations require

Schedule 4 of the Safety, Health and Welfare at Work (General Application) Regulations 2007 sets minimum requirements for display screen workstations, including the desk.4

Minimum DSE work desk requirements

  • A sufficiently large, low-reflectance work surface
  • Room for a flexible arrangement of the screen, keyboard, documents and related equipment
  • A stable, adjustable document holder where one is used
  • Adequate space for the user to find a comfortable position and to change position

A sit-stand desk isn't a legal requirement for every employee, but it's often the most effective way to meet an individual's needs, for example where a DSE assessment identifies back pain, a height mismatch or a desk shared across shifts.

Common desk buying mistakes

Choosing on price alone

A budget desk that wobbles at standing height quickly becomes a desk that's never raised.

Ignoring the height range

If the desk can't go low or high enough for you, it will never fit, however good the motors are.

Underestimating the weight

Monitors, arms and storage add up. Overloading shortens motor life and increases wobble.

Buying too small

A desk that's too shallow forces your screen too close. Plan for your full setup, not just a laptop.

Standing too much, too soon

Swapping hours of sitting for hours of standing brings its own aches. Alternate little and often.

Forgetting the rest of the setup

A great desk still needs a good chair, correct screen height and tidy cables to work properly.

Try Before You Buy

Feel the difference at full height

Stability, speed and noise are hard to judge online. At our showrooms you can raise and lower our sit-stand desks yourself, type at standing height and compare desks side by side, with a KOS consultant on hand to set everything up to suit you.

Free showroom visit Test desks and chairs together in Dublin (3 Clare Street) or Tipperary (Tobin's Cross, Holycross). Strictly by appointment, so a consultant is there just for you.
1-on-1 ergonomic consultation Add a clinical consultation to your visit, led by a qualified ergonomist, physiotherapist or occupational therapist, to plan a complete workstation around your needs.
Remote video consultation Can't travel? A consultant shows you desks on camera and helps you choose the right size and setup from home.
KOS Ergonomics Dublin showroom
Dublin
KOS Ergonomics Tipperary showroom
Tipperary

Frequently asked questions

Are sit-stand desks worth it?

For people who sit for most of the day, yes. Trials have shown sit-stand desks, combined with support to use them, can cut daily sitting by over an hour. The key is choosing a stable, easy-to-adjust desk you'll actually use, and changing position regularly.

How long should I stand at a sit-stand desk?

Build up gradually and change position little and often rather than standing for long stretches. A simple routine we recommend is 20 minutes sitting, 8 minutes standing and 2 minutes moving, repeated through the day.

What height should my desk be?

Set it to your elbow height, with shoulders relaxed and elbows bent at about 90 degrees, both when sitting and standing. This is why height-adjustable desks suit most people better than a fixed desk height.

Single motor or dual motor?

Dual-motor desks lift more evenly, carry more weight and are generally more stable and durable, which makes them the better choice for full-size desks, multiple monitors and shared workstations.

What size desk do I need?

Around 120cm by 80cm suits most single-monitor setups. Choose 160cm or wider for dual monitors, and always allow enough depth to keep your screen about an arm's length away.

Can I try KOS desks before I buy?

Yes. Book a free appointment at our Dublin or Tipperary showroom to test sit-stand desks with a consultant, add a 1-on-1 ergonomic consultation, or book a remote video consultation if you can't travel.

Sources

  1. Edwardson et al., Effectiveness of the Stand More AT (SMArT) Work intervention: cluster randomised controlled trial, The BMJ (2018); summary via Irish Heart. ncbi.nlm.nih.gov/pmc/articles/PMC6174726 · irishheart.ie
  2. SMART Work & Life cluster randomised controlled trial, The BMJ (2022), reported by EurekAlert. eurekalert.org/news-releases/961862
  3. Changes in Baropodometric Evaluation and Discomfort during the Workday in Assembly-Line Workers (review of prolonged standing risks). ncbi.nlm.nih.gov/pmc/articles/PMC11011590
  4. Schedule 4, S.I. No. 299/2007 Safety, Health and Welfare at Work (General Application) Regulations 2007, revised. revisedacts.lawreform.ie
  5. Spectrum Health, Ergonomics: what are my responsibilities and obligations as an employer? (2024). spectrumhealth.ie

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