Gaming desk setup checklist: the measurements that matter

Straferz setup deskUpdated September 2026Ergonomic targets from OSHA and CCOHS guidance
Short answer

Take six numbers in order: seat height, elbow height, seated eye height, current screen-top height, viewing distance and mouse lane. Set the chair so your elbows sit level with the desk, then set the screen so its top edge is at or slightly below eye level, 50 to 100 cm from your eyes. The accessories come last.

Most setup guides start with the monitor. That is the wrong end. Chair height decides where your elbows land, elbow height decides the desk, and only then does the screen have a fixed target to hit.

On this page
  1. The order to work in
  2. The six numbers
  3. Setting the monitor height
  4. Setting the viewing distance
  5. Mouse lane and keyboard zone
  6. What belongs on the desk
  7. Questions people ask

The order to work in

Do these in sequence. Changing the chair later means setting the monitor again.

  1. Chair first. Set seat height so your feet rest flat with knees near 90 degrees, then set the armrests so your shoulders stay down.
  2. Desk second. With the chair set, your forearms should sit level with the desk, or very slightly above it. If a fixed-height desk forces your elbows up, the chair is too high.
  3. Monitor third. Now that your seated eye height is fixed, the screen has one target: the top edge at or slightly below your eye line.
  4. Mouse and keyboard last. Set the lane so your hand sweeps freely and does not drop off an edge at the keyboard.

The six numbers

Measurement Where to take it Target Source of the target
Seat height Floor to the top of the seat cushion Feet flat, knees near 90 degrees Posture convention, not a fixed number
Elbow height Floor to the underside of your forearm with the upper arm hanging Level with the desk surface Ergotron keyboard guidance
Seated eye height Floor to your pupil line in your normal seated posture Whatever it measures; this is the input, not the target Your own tape measure
Screen top height Desk surface up to the top edge of the screen Seated eye height minus desk height OSHA: top line of screen at or below eye level
Viewing distance Eye to the front surface of the screen 50 to 100 cm (20 to 40 in) OSHA preferred viewing distance
Mouse lane Leftmost to rightmost comfortable sweep Half your cm/360 turn Derived from your sensitivity
One number is not a targetSeated eye height is different for everyone and no guidance body publishes a figure for it. Measure yours; the published targets are all relative to it, and copying another setup usually fails.

Setting the monitor height

The target is arithmetic once you have two measurements. Screen top height above the desk = seated eye height minus desk height. If your eye line sits 120 cm above the floor and the desk is 74 cm high, the screen top belongs about 46 cm above the desk.

Then measure where the top edge actually sits with the monitor on its own stand. The difference is the riser height you need. Most monitors land short of the target, which is why monitor stands exist as a product category and not a preference.

CCOHS notes that guidance on viewing angle and distance differs between sources, and should be treated as a starting point rather than a rule carved in stone. Practically: looking up is tiring, looking slightly down is not.

The desk mat calculator covers the horizontal space; monitor height is worked through in full, with the numbers, in monitor height and viewing distance, worked out.

Setting the viewing distance

OSHA puts the preferred viewing distance at 20 to 40 inches (50 to 100 cm) from the eye to the screen surface. CCOHS illustrates 40 to 74 cm on its diagram and notes that an arm length is a reasonable estimate. The overlap, roughly 50 to 74 cm, is the safe middle.

Screen size Panel width, 16:9 Why distance changes
24 inch 53 cm Comfortable at the short end of the range
27 inch 60 cm Sits naturally around 60 to 75 cm
32 inch 71 cm Wants the longer end; the panel is wide enough that neck rotation becomes the limit

Ergotron states it plainly: position the monitor at least 20 inches away, and add more distance for a larger screen. Size and distance move together, which is why a 32 inch screen on the same 60 cm desk as a 24 inch sits too close.

The honest limit of this adviceNone of these numbers account for your vision. If you wear reading or progressive lenses, the comfortable distance may be shorter, and lowering the screen is the usual fix. CCOHS makes that point directly: better to increase text size than to force a distance your eyes cannot hold.

Mouse lane and keyboard zone

The mouse lane is the travel your hand can make without hitting the keyboard, a monitor stand base or the desk edge. Its size comes from sensitivity: cm per 360 divided by two. At 1600 eDPI that is about 13 cm, at 800 about 26 cm, at 400 about 52 cm.

Two rules keep the lane usable: put the keyboard on the same surface as the mouse so your wrist does not drop between them, and keep the monitor stand base out of the lane.

The mat size calculator takes desk width, keyboard width and your sensitivity and returns the footprint that leaves the lane intact.

What belongs on the desk

Everything on a gaming desk serves posture, aim or cable management. Anything else is decoration, which is fine as long as it stays out of the lane.

Item It earns its place when It costs you
Desk mat The keyboard and mouse share one level surface Depth if it is thicker than the monitor base allows
Monitor stand or riser The screen top sits below your seated eye line Desk depth, and the base competes with the mat
Keyboard stand or tilt block Your wrists sit flat rather than bent back Stability on a thick mat
Armrest pads The chair arms dig into your forearms on long sessions Nothing, if they keep the shoulders down
Cable anchors The mouse cable pulls during a sweep Cleanup time

Questions people ask

What are the must-haves for a gaming desk?
A surface at a height that puts your elbows level with it, a chair that reaches that height with your feet flat, screen height you can adjust, and a mouse lane sized to your sensitivity. Everything else is preference.
What are the best desk setups for gaming?
The ones where the six measurements line up: chair set first, desk second, screen top at or slightly below your seated eye level, screen 50 to 100 cm from your eyes, and a mouse lane at least half your cm/360 turn.
What should I put on my gaming desk?
Only what serves posture, aim or cable management. A mat, a monitor stand if your screen sits below your eye line, and a way to stop the mouse cable dragging. Anything sitting in the mouse lane is a net loss.
What should be included in a gaming desk?
Enough width for the keyboard and the mouse lane side by side, and enough depth for a monitor plus a keyboard in front of it. A 120 cm wide, 60 cm deep desk covers most setups; low sensitivity wants more width.
How do I design my gaming desk?
Work in order. Set the chair, set the desk height against your elbows, set the screen against your seated eye line, set the viewing distance against the panel size, then size the mouse lane from your sensitivity.

Sources

  1. OSHA. Computer Workstations eTool, monitors: viewing distance 20 to 40 inches, top line of screen at or below eye level, tilt limits — www.osha.gov/etools/computer-workstations/components/monitors
  2. CCOHS. Office ergonomics, positioning the monitor: viewing angle, viewing distance, and the note that guidance differs between sources — www.ccohs.ca/oshanswers/ergonomics/office/monitor_positioning.html
  3. Ergotron. The Ergonomic Equation: monitor tips including at least 20 inches and a 10 to 20 degree tilt — www.ergotron.com/en-us/ergonomics/ergonomic-equation
  4. Calculator Academy. cm per 360 calculator, used for the mouse lane figures — calculator.academy/cm-per-360-calculator

Shop the pieces that change posture

Monitor stands, tilt blocks and desk mats, with dimensions listed in millimetres.

Shop setup gear

Which one to buy

Every option this store stocks, with price, type and who it suits, is compared on one page.

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