How to choose an office chair? Everything you need to know before buying

2026-04-22

Choosing an office chair is one of the most important decisions for your health if you spend more than 4 hours a day at your desk. An unsuitable seat means not only discomfort, but also a real risk of spinal degeneration and reduced concentration.

In this guide, you will learn which parameters to pay attention to so that your chair supports you during work and study.

Why does ergonomics matter?

An ergonomic office chair is one that adapts to the natural curves of your body rather than forcing you into an unnatural position. The key benefits are:

Reduction of muscle tension in the neck and shoulders.
Support for the lumbar spine, which helps prevent back pain.
Better blood circulation thanks to the proper seat depth.

What should you pay attention to? Key features of a premium chair

A. Lumbar adjustment – the foundation of a healthy back

Look for chairs that offer height or depth adjustment of the lumbar support. The lower part of the spine is curved in an arch (lordosis) – the chair should fill this arch so the muscles can relax.

B. Synchronous mechanism

Cheap chairs have rigid backrests. Professional models offer a synchronous mechanism that allows for:

Simultaneous reclining of the backrest and seat in an optimal ratio.
So-called "dynamic sitting" – the chair follows your movement without losing stability.

C. 3D or 4D armrests

Armrests should relieve the shoulder girdle. The best models offer adjustment in several planes:

Up-down: adjustment to the height of the desktop.
Front-back: adjustment to the length of the forearm.
Rotation angle: angling the pads slightly inward supports the natural position of the hands when typing on the keyboard.

Correct wrist position: When typing, the wrists should not be bent upward or downward. They should form a straight line with the forearm. If you feel pressure in your wrists, check whether your hands are "hanging" in the air or unnaturally raised – in that case, adjusting the armrest height or using a gel pad is necessary.

D. Upholstery material – what to choose?

The choice of material affects thermal comfort and the durability of the furniture:

Mesh: provides maximum ventilation and adapts to the back.
Fabric: is characterized by high durability and thermal comfort.
Eco-leather: is exceptionally easy to clean and gives an elegant appearance.

The 90-degree rule – how to set up your chair correctly? (Step-by-step instructions)

Even the most advanced ergonomic chair will not fulfill its function if it is not adjusted to your height and workstation. To relieve your joints and spine, configure your workspace according to the list below:

Feet: A stable base - Set the seat height so that both feet rest flat on the floor. If the chair is too high and your heels hang in the air, you put pressure on your thighs, which hinders circulation.

Pro tip

If the desk is not adjustable and you have to sit higher, be sure to invest in a footrest.

Knees: The ideal right angle - There should be a 90° angle between the thigh and lower leg. Also pay attention to the seat depth – the edge of the chair should not press into the back of the knees. Keeping a few centimeters of space ensures free blood flow.
Elbows and shoulders: A relaxed upper body - Raise the armrests until they are level with the desktop. Your arms should bend at the elbows at a 90° angle, and your forearms should rest freely on the armrests. This relieves the neck muscles and helps prevent shoulder pain.
Vision: A natural neck line - The top edge of the monitor should be at eye level (or slightly below). This way, you will not have to unnaturally lift your head or excessively lean forward, which is the main cause of the so-called "dowager's hump."

Remember

The healthiest position is the... next one. Even with ideal setup, try to change your body position every 30 minutes.

Casters: Hard or soft? Match them to the floor

The choice of casters is hugely important for the chair's mobility and the condition of your floor.

Rubberized casters (soft): Ideal for hard surfaces such as panels, wood, tiles, or vinyl. The rubber coating cushions movement, does not scratch the finish, and operates very quietly.
Hard casters (plastic/nylon): When should you use them? They are intended exclusively for soft surfaces such as carpets and rugs. The hard material creates less resistance on fibrous surfaces, allowing the chair to move smoothly. On a hard floor, such casters will be noisy and may permanently damage the surface.

Additional features that make a difference

Often, it is these "small details" that determine whether you get up from your chair after 8 hours of work feeling rested or sore. Here are the features your body will thank you for:

Seat depth adjustment: Personalization to your height - This is a feature that is often overlooked, yet crucial for ergonomics. It allows the seat to slide forward and backward relative to the backrest.

Why is it important? It prevents leg numbness. Tall people need a longer seat so that their thighs have proper support. Shorter people, in turn, avoid pressure from the edge of the chair under the knees, which is the main cause of circulation problems.

Adjustable headrest: Support for the cervical spine - The headrest is not meant for resting your head throughout the entire workday, but it is essential during moments of rest.

Why is it important? During phone calls, online meetings, or a short break, it helps relieve the muscles of the neck and cervical area. The best headrests have 2D or 3D adjustment (height and tilt angle), so they perfectly hit the support point of the skull, helping prevent tension headaches.

Retractable footrest: A new dimension of relaxation - Increasingly found in modern office chairs. It allows you to fully straighten your legs in a semi-reclined position.

Why is it important? This feature is ideal for short restorative breaks or reading documentation. It allows temporary relief for the lower spine and improves blood flow in the legs.

FAQ

1. How do I properly adjust the chair height relative to the desk?

Set the seat so that your feet rest flat on the floor and the angle at your knees is 90°. The key is to align the height of the armrests with the desktop – this allows your forearms to rest freely, immediately relieving your shoulders and neck.

2. Is a mesh chair durable, and will it not stretch out?

High-quality mesh is more durable than classic foam because it does not become "flattened." It retains its elasticity for years, and its open structure provides constant ventilation, eliminating the problem of an overheated back while working.

3. What desk chair should I choose for a school-age child?

Choose a model with seat height and depth adjustment suited to a smaller height. It is important that the backrest actively supports the lumbar area and that the seat is shallow enough for the child to fully rest their back without leg numbness.

4. From what height can a child use an "adult" chair?

Standard ergonomic chairs are designed for people with a height of approx. 150-155 cm and above. Using them by shorter children makes it impossible to properly rest the back while bending the legs at the same time, which forces a harmful hunched position.

5. How do I check whether the chair fits my height (e.g. 190 cm or 160 cm)?

Tall people (190 cm+) must look for a model with a high backrest and a sliding seat function. Shorter people (160 cm-) require a chair with a low base (seat from approx. 40 cm) and a shallow profile that allows the back to make contact with the backrest.

Show more entries from April 2026