Office chairs with adjustable seat height allow users to raise or lower the seat so the chair can be adapted to their body dimensions, desk height and working position. Seat-height adjustment is one of the most important and most common features of an ergonomic office chair.

It is particularly useful for task chairs, shared workstations and hybrid offices, where different users may need to adjust the same chair throughout the week.

What is adjustable seat height?

Adjustable seat height means that the vertical position of the chair seat can be changed by the user. Most modern office chairs use a gas lift operated through a lever beneath the seat.

Changing the seat height affects the position of the legs, feet, arms and upper body in relation to the desk. It should therefore be one of the first adjustments made when setting up an office workstation.

Why is adjustable seat height important?

People differ considerably in height and body proportions. A fixed seat height that works well for one person may leave another user’s feet unsupported or position them too low in relation to the desk.

An adjustable office chair makes it easier to create a suitable working position and can provide several practical benefits:

• Accommodation of users with different heights
• Better positioning of the feet and legs
• Improved alignment between the user and desk
• Greater flexibility for shared and hybrid workstations
• Easier adaptation when desks or working environments change
• A better foundation for adjusting the rest of the chair

How should office chair seat height be adjusted?

The chair should generally be adjusted so that the user can sit comfortably with the feet supported and the thighs in a relaxed position.

The exact position depends on the individual and the height of the desk. The user should also be able to work with the keyboard and mouse without raising the shoulders or reaching upward excessively.

A practical setup normally starts by adjusting the chair height before fine-tuning seat depth, backrest position, lumbar support and armrests.

Read our ergonomic workstation setup guide for a complete step-by-step explanation.

What if the chair needs to be raised for the desk?

In some workplaces, the desk height is fixed. A shorter user may therefore need to raise the chair higher than would otherwise be necessary in order to position the arms comfortably in relation to the desk.

If this causes the feet to lose proper support, a suitable footrest may be required. The goal is to coordinate the chair and desk rather than optimising one component while creating a problem elsewhere.

A height-adjustable desk can provide additional flexibility because both the desk and chair can be adapted to the user.

Seat-height adjustment in shared workstations

Adjustable seat height is particularly important in shared, hot-desking and hybrid workplaces. The same chair may be used by people with substantially different body dimensions.

Users should be able to adjust the chair quickly when they start working instead of remaining in the position selected by the previous employee.

For a shared workstation, seat-height adjustment is most useful when combined with other accessible adjustments, such as:

• Adjustable seat depth
• Adjustable armrests
• Adjustable lumbar support
• Backrest adjustment
• A suitable reclining or synchronous mechanism
• Adjustable monitor equipment

Read our guide to ergonomics for shared workstations for more information about furnishing hybrid and flexible offices.

Seat-height adjustment and seat depth

Seat height and seat depth perform different functions but should be adjusted together.

Seat height changes the vertical position of the user, while adjustable seat depth changes the distance between the backrest and the front edge of the seat.

Once the seat height has been set, the seat depth can be adjusted so the thighs are supported while the user remains comfortably against the backrest.

Seat-height adjustment and armrests

Raising or lowering the chair also changes the position of the armrests relative to the desk. This is particularly relevant for chairs with fixed armrests.

Adjustable armrests provide additional flexibility because the arm supports can be repositioned after the seat height has been set.

The armrests should support the forearms without forcing the shoulders upward or preventing the chair from moving sufficiently close to the desk.

Seat-height adjustment and lumbar support

After the seat height and depth are established, the user can adjust the backrest and lumbar support where these features are available.

Chairs with adjustable lumbar support provide more opportunity to fine-tune lower-back support for the individual user.

The complete setup should allow the user to sit comfortably against the backrest while keeping the feet and arms appropriately supported.

What seat-height range should an office chair have?

The required adjustment range depends on the intended users and the workstation. A chair intended for a highly shared office should generally accommodate a broader population than a chair selected for one assigned user.

When comparing products, check both the minimum and maximum seat height rather than simply confirming that the chair is adjustable.

The dimensions should also be considered together with the desk height, seat depth and any specialist accessibility requirements.

Adjustable vs fixed seat height

An office chair with adjustable seat height provides significantly more flexibility than a chair with a fixed seating position.

Office chairs without adjustable seat height may still be suitable for meeting rooms, visitor areas, conference spaces and other applications where users sit for shorter periods and individual workstation adjustment is less important.

Adjustable seat height is particularly useful when:

• The chair is used for prolonged desk work
• Different employees share the same chair
• The workplace needs to accommodate users of different heights
• The chair is used with a standard office desk
• Individual ergonomic adjustment is important

Fixed seat height may be sufficient when:

• The chair is primarily used for visitors or meetings
• Typical sitting periods are relatively short
• The seating and table have been designed as a coordinated set
• Individual workstation adjustment is not required

Seat height is only one part of an office chair

Seat-height adjustment is an important feature, but it should not be used as the only measure of whether a chair is suitable for professional use.

Other relevant characteristics can include:

• Seat-depth adjustment
• Seat width and shape
• Backrest dimensions
• Lumbar support
• Adjustable backrest height
• Adjustable armrests
• Chair mechanism
• Weight or tension adjustment
• Upholstery and materials
• Applicable office-chair standards
• Warranty and replacement-part availability

For a broader overview, read our guide to choosing an office chair.

Questions to consider

• What is the minimum and maximum seat height?
• Does the adjustment range suit the intended users?
• Will the chair be assigned or shared?
• How many hours per day will the chair typically be used?
• Can users place their feet comfortably on the floor?
• Does the chair height work with the desk?
• Would a footrest be required for some users?
• Which other chair adjustments are available?
• Can the seat height be adjusted easily while seated?

Explore office chairs with adjustable seat height at Myntwork

Office chairs with adjustable seat height provide a flexible foundation for ergonomic individual and shared workstations. They allow users to adapt the chair to their body dimensions and desk height before fine-tuning the other chair settings.

When selecting a chair, compare the complete seat-height range together with seat depth, backrest support, armrests, mechanism and the intended duration of use.

Explore our office chairs or browse the complete Myntwork office furniture collection.