Home Office Desk Size Calculator
A desk that's too narrow for your monitor setup leaves screens overlapping your keyboard space, while an oversized desk can overwhelm a small home office. Choose your monitor setup below to get a recommended desk width.
Find the right desk width for your monitor setup
Choose how many monitors you plan to use.
Recommended desk width for 1 monitor:
120cm
Enough surface for a single monitor plus keyboard, mouse and a notepad.
Recommended products
A few well-reviewed office desks at a range of widths.
- Steel frame
- Home working & standing breaks
£379.99
Pros
- Dual-motor lift handles up to 125kg
- Memory presets for sit-stand heights
- Whisper-quiet height adjustment
- 5-year warranty
Cons
- Desktop sold separately on some bundles
- Takes up more floor space than a fixed desk
- MDF
- Small home offices
£35.33
Pros
- Compact 110 x 40cm footprint suits box rooms
- Built-in 3-tier storage shelf for monitor or printer
- Simple cable management hole
Cons
- MDF top can chip if knocked
£159.99
Pros
- Breathable mesh back stays cool for long sessions
- Up-and-down adjustable lumbar support and 3D armrests
- Swivel base tilts and locks at multiple angles
Cons
- Assembly instructions are a little sparse
Frequently asked questions
What size desk do I need for two monitors?
A desk between 140 and 160cm wide usually gives two monitors enough room to sit side by side without crowding your keyboard, mouse and any paperwork.
Do I need a bigger desk if I use a monitor arm?
A monitor arm can free up desk depth since the screen is lifted off the surface, but it doesn't reduce how much width you need side to side for multiple screens.
Is a corner or L-shaped desk better for three monitors?
Often yes — an L-shaped or corner desk gives you the width for three screens without needing as much depth of room, which suits smaller home offices better than a single long straight desk.
How much desk depth should I leave in front of the monitor?
Aim for at least 60 to 70cm of depth so the screen sits far enough away for comfortable viewing, with room left in front for a keyboard and mouse.
How this calculator works
The calculator asks how many monitors you plan to use and matches that to a recommended desk width. A single monitor setup needs at least 120cm of width for the monitor, keyboard, mouse and a notepad. Two monitors side by side need 140-160cm to avoid crowding the keyboard space. Three or more monitors need 180cm or more, which usually means a corner or L-shaped desk to keep the setup usable.
These are minimum widths — if you have extra space, a wider desk gives you more room for documents, a laptop, a phone and personal items without feeling cluttered. Desk depth also matters: aim for at least 60-70cm of depth so the screen sits far enough away for comfortable viewing, with room in front for a keyboard and mouse.
Desk sizes by monitor setup
| Monitor setup | Recommended width | Minimum depth | Desk type | Typical use |
|---|---|---|---|---|
| 1 monitor | 120cm | 60cm | Straight desk | Basic home office, study |
| 1 monitor + laptop | 140cm | 60cm | Straight desk | Hybrid working, study |
| 2 monitors | 140-160cm | 60-70cm | Straight or L-shaped | Professional, trading, design |
| 3 monitors | 180cm+ | 70cm | L-shaped or corner desk | Trading, video editing, gaming |
| 3+ monitors (wide) | 200cm+ | 70-80cm | Corner desk or dual desk | Professional, simulation |
Worked example: A two-monitor home office setup
For two monitors side by side, the calculator recommends a desk width of 140-160cm. A 140cm desk gives each monitor roughly 55-60cm of width (after allowing 10-15cm on each side for the monitor stands), which is enough for two 24-27 inch screens without crowding the keyboard. A 160cm desk gives more breathing room and space for a laptop, documents or a second keyboard.
With a depth of 60-70cm, the monitors sit 50-60cm away from your eyes, which is the recommended viewing distance for a 24-27 inch screen. This setup works well in a standard home office or a spare room — a 140cm straight desk fits against a wall in a room as narrow as 180cm wide, leaving 20cm on each side for access and cable management.
Common mistakes when choosing a home office desk
- Buying a desk that's too narrow for the monitor stands. A 27 inch monitor with a stand can be 25-30cm deep, and two monitors side by side need at least 120cm just for the screens, plus another 20cm on each side for the keyboard and mouse. Always check the total width needed, not just the screen size.
- Forgetting about cable management. A desk with a cable management hole or grommet in the back keeps cables tidy and prevents them from hanging down the front. If you have a monitor arm, make sure the desk is deep enough to mount it — most arms need at least 60cm of depth to clamp to the back of the desk.
- Not considering the room's door swing and traffic flow. A 180cm desk pushed against a wall might look fine on paper, but if the room door opens inward and hits the desk, or if the desk blocks a walkway to a wardrobe or bathroom, the setup becomes frustrating day-to-day. Measure the room and check the door swing before buying.
- Choosing a glass or glossy surface that reflects glare. A glass desk looks modern but can reflect windows, lights and screens, causing eye strain. For a home office where you'll be working for hours, a matte or semi-matte surface (wood, laminate or textured glass) is easier on the eyes.
What to look for when buying a home office desk
Desk construction affects both stability and durability. A solid wood or MDF desk with a thickness of 18-25mm is sturdy enough for multiple monitors and heavy equipment. A glass desk needs tempered safety glass (at least 8-10mm thick) to support the weight of monitors and avoid cracking. Avoid desks with particleboard or thin veneer — they can sag or wobble under load, especially over time.
Height adjustability is worth considering. A fixed-height desk is fine if you're the only user and you have a comfortable chair, but a sit-stand desk lets you alternate between sitting and standing, which is better for posture and reduces back pain. Electric sit-stand desks are the easiest to adjust, while manual crank desks are cheaper but slower to operate. If you share the desk with someone of a different height, an adjustable desk is essential.
Finally, think about storage and organisation. A desk with drawers gives you space for pens, notebooks and stationery, but drawers can reduce knee space under the desk. A desk with a raised shelf or monitor riser gives you extra storage while keeping the main surface clear. If you have a lot of equipment, look for a desk with a CPU holder or a cable management tray to keep the floor tidy.
More questions answered
What size desk do I need for two monitors?
A desk between 140 and 160cm wide usually gives two monitors enough room to sit side by side without crowding your keyboard, mouse and any paperwork.
Do I need a bigger desk if I use a monitor arm?
A monitor arm can free up desk depth since the screen is lifted off the surface, but it doesn't reduce how much width you need side to side for multiple screens.
Is a corner or L-shaped desk better for three monitors?
Often yes — an L-shaped or corner desk gives you the width for three screens without needing as much depth of room, which suits smaller home offices better than a single long straight desk.
How much desk depth should I leave in front of the monitor?
Aim for at least 60 to 70cm of depth so the screen sits far enough away for comfortable viewing, with room left in front for a keyboard and mouse.
Should I get a sit-stand desk?
A sit-stand desk is a good investment if you work from home regularly. Alternating between sitting and standing reduces back pain, improves posture and burns more calories. Electric sit-stand desks are the easiest to adjust — look for a dual-motor model for smooth, quiet operation. If you only stand occasionally, a manual crank desk is cheaper but takes more effort to adjust.
What's the best desk height?
The standard desk height is 73-76cm, which works for most people between 160-180cm tall. If you're taller or shorter, an adjustable desk lets you set the perfect height. When seated, your elbows should be at roughly 90 degrees with your forearms parallel to the floor, and your feet should rest flat on the floor or on a footrest.
How do I hide cables on my desk?
A cable management grommet or hole in the back of the desk is the simplest solution — route all cables through it and down the back of a cable sleeve or tray. Cable clips on the edge of the desk keep individual cables tidy. If you have a monitor arm, choose one with built-in cable management. Avoid running cables across the front of the desk where they get in the way of typing and writing.
Should I get a desk with drawers or a simple tabletop?
A desk with drawers is useful if you need to store stationery, notebooks and files within arm's reach. However, drawers can reduce knee space and make it harder to stretch your legs. A simple tabletop with a separate filing cabinet or storage unit gives more flexibility — you can move the storage around the room and keep the desk clear for working. For a small home office, a desk with one or two shallow drawers is a good compromise.