Standard Desk Height: Typical Heights in Inches and cm, and How to Tell If Yours Fits

What is the standard desk height?

The standard desk height for a fixed office desk is about 29 to 30 inches, or roughly 74 to 76 cm from the floor to the top of the desk. A Cornell University ergonomics case study states it plainly: office desks are normally set at 29"-30".

Cornell's computer workstation guidelines give a slightly wider range. For a flat surface used for both writing on paper and computer work, they suggest 28 to 30 inches above the floor, which they describe as suitable for most adults.

So if you are asking how tall a desk is, the honest answer is "about 28 to 30 inches, usually at the upper end." Whether that number suits your body is a separate question, and the rest of this guide shows how to check it. If you want a personal number right away, the sitting and standing height calculator at the top of this page works out a seated and standing height from your own height.

What are typical desk heights by desk type?

Desks are built to a convention rather than a single published rule, so treat these as typical figures, not requirements. Here is what the sources we checked actually say.

Desk type	Typical height	cm	What the source says
Standard office desk (fixed)	29 to 30 in	about 74 to 76 cm	Cornell: office desks are "normally set at 29"-30""
Writing desk or combined writing and computer surface	28 to 30 in	about 71 to 76 cm	Cornell: a flat surface "between 28"-30" above the floor (suitable for most adults)"
Computer desk	Varies, sometimes lower	e.g. 27 in is about 69 cm	Cornell's case study involved a 27-inch computer desk, lower than the usual office height
Standing or sit-stand desk	No single standard	n/a	CCOHS: set the standing height at about your standing elbow height
Leg clearance under the desktop	20 to 28 in	50 to 72 cm	OSHA: clearance for the legs should generally fall in this range

Two takeaways. First, the average desk height you will meet in offices and furniture stores sits in a narrow 28 to 30 inch band. Second, adjustable desks have no fixed standard at all, because the whole point is that they move to fit the user.

What is the standard office desk height versus a writing desk?

In practice they are the same range. A standard office desk height of 29 to 30 inches and a standard writing desk height of 28 to 30 inches overlap almost completely.

The difference is the task. Cornell points out that you can't set one flat surface at the ideal height for all five main office tasks: keyboarding, mousing, writing, reading documents and viewing the screen. Each prefers a slightly different height, which is why Cornell suggests a writing-height desk with an adjustable keyboard and mouse tray for computer work.

Why doesn't one standard desk height fit everyone?

Because people are not standard. CCOHS's chair guidance opens with a basic rule of ergonomics: there is no such thing as an "average" person. Seated elbow height depends on your stature, the length of your torso and upper arms, and how high you set your chair.

A fixed desk at 29 or 30 inches is a reasonable middle value. For a tall person it can be too low, forcing a hunch or leaving no room for the thighs. For a shorter person it is often too high, so the arms lift and the shoulders creep up while typing.

OSHA's desk guidance names exactly these problems: desk surfaces that are too high or too low may lead to awkward postures, such as extended arms to reach the keyboard and raised shoulders. Held for hours, those postures are what make a desk uncomfortable.

The sitting and standing positions also differ. A standard desk height can only ever match a seated elbow height. Your elbows rise a long way when you stand, which is why a standing desk needs its own setting. Our guide to setting your standing desk height covers that case.

How do you tell if your desk height fits you?

Use the elbow-height rule. You need a few minutes, and a second person or a mirror helps.

1. Adjust your chair first. Sit back with your feet flat, thighs roughly level and lower back supported. Our correct sitting posture checklist walks through each setting.
2. Let your arms hang at your sides with your shoulders relaxed.
3. Bend your elbows to about 90 degrees, forearms roughly parallel to the floor.
4. Compare your elbows to the keyboard. OSHA's keyboard guidance says elbows should be about the same height as the keyboard and hang comfortably at your sides, with wrists that don't bend up, down or to the side.
5. Check your legs. Slide in. Your thighs should clear the underside of the desk and you should be able to move your legs freely.

CCOHS gives a simple pass or fail test. If you can't fit your legs under the workstation, or there isn't enough room to move them, the desk is too low for you. If you can sit comfortably but need to raise your arms to get them over the work surface, the desk is too high.

What are the signs your desk is the wrong height?

• Your shoulders lift or tense while you type.
• Your wrists bend upward to reach the keys.
• You perch on the front of the chair or lean forward to reach.
• Your thighs press against the desk, a drawer or the keyboard tray.
• Your feet dangle once you raise the chair to fit the desk.

If any of these sound familiar, the standard desk height probably doesn't suit your body. This article is general information, not medical advice. If you have persistent pain in your neck, shoulders, wrists or back, see a clinician.

What should you do if your desk is too high?

This is the most common problem, because a standard desk height of 29 to 30 inches tends to suit taller users better than shorter ones. You have three main fixes.

Raise the chair and add a footrest. OSHA's advice when a work surface can't be lowered is to raise the chair to suit the user and provide a footrest if needed. CCOHS says the same: adjust the chair so your elbows are about level with the work surface, and use an adjustable footrest that supports both feet if they don't rest flat on the floor. CCOHS calls an adjustable chair plus footrest an effective and cheaper option than a fully adjustable desk.

Add a keyboard tray. OSHA says a keyboard tray may be needed when the work surface or chair can't be properly adjusted. The tray should adjust in height and tilt, leave enough leg and foot clearance, and have room for both the keyboard and mouse. Cornell favors a tray that tilts slightly down and away from you (negative tilt) for better wrist posture.

Lower the desk itself. OSHA lists cutting off the desk legs as an option for fixed desks if necessary. That only makes sense for a desk one person uses, and it's permanent.

What should you do if your desk is too low?

Tall users often find a standard height desk forces them to hunch or leaves their thighs jammed under the top.

Use desk risers. OSHA suggests raising the work surface by putting stable risers, such as boards or concrete blocks, under the desk legs. Use purpose-made risers or something that can't slide or tip.

Create more thigh clearance. OSHA suggests removing the center drawer of a conventional desk to free up space for the thighs. Its keyboard guidance adds that a work surface should generally be no more than 2 inches thick, and that drawers can stop you raising the chair high enough.

Keep the legroom clear. OSHA says leg clearance under the desktop should generally be between 20 and 28 inches (50 to 72 cm), and that the space shouldn't be filled with files, CPUs, books or storage.

When is a height-adjustable desk worth it?

OSHA lists height-adjustable desks among its solutions, and CCOHS calls a fully adjustable desk perhaps the most preferable option, while noting the price can make it impractical. It makes most sense when:

• Several people share the desk, such as hot desks, shift work or shared home offices.
• You are well outside the height range a standard desk suits, and a footrest or risers aren't enough.
• You want to alternate between sitting and standing.

For a sit-stand desk, CCOHS says the platform height in the standing position should be approximately at your standing elbow height, with the keyboard and mouse placed as they are when sitting. You save two settings rather than relying on any standard.

If you're setting up a whole workstation, not just the desk, our step-by-step ergonomic desk setup guide puts the chair, desk, keyboard, mouse and monitor in the right order. The free workstation self-assessment on ViveLab is a quick way to check the full setup once the desk height is sorted.

Next steps

The standard desk height is a useful starting point, roughly 29 to 30 inches, but your elbows decide whether it works. Get your personal sitting and standing numbers from the desk height calculator, compare them with your current desk, and fix the gap with a chair and footrest, a keyboard tray or risers. If you're moving to a sit-stand desk, read how high a standing desk should be before you save your presets.