fbpx
Skip to content

Office Chair Parts Guide What Are the Different Office Chair Components?

office chair components

Choosing your first executive office chair can be exciting. The days of sitting on a living room chair are soon gone and an executive office chair comes with one of the best experiences for posture and productivity. But what if you need to assemble the chair yourself for replacement and don't know what are the parts of an office chair? The following guide addresses the main office chair mechanism parts.

1. Office Chair Base

All executive office chairs come with a base. But this base can be made from various materials. Its main function is to provide stability. The base is also used for movement when made with the attached casters. Some of the most stable chairs on the market come with 5 legs and a large diameter to add extra stability.

office chair bases

There are various materials used to create an executive office chair base. Steel is the most durable material. While it is also the heaviest, it represents a solution which is durable and which can handle the most weight and pressure. Aluminum materials are also used for the chair base. The metal is lighter than steel and this gives the chair a more mobile profile. Polypropylene materials are also used for some executive office chairs. The material has the advantage of being lightweight, but it is not made for the most intensive use. Heavier users are advised to look for metal or aluminum alternatives. Each chair comes with a maximum user weight capacity which is often found in the product description.

2. Office Chair Mechanism

The design of the chair mechanism can differ from manufacturer to manufacturer. Some chairs offer vertical adjustability while others also offer backrest adjustability. The chair mechanism is placed in a position where it is easy to reach but at the same time, it is also mainly located under the seat pan to avoid auctioning it by accident.


For the maximum adjustability which results in maximum comfort and flexibility, look for dynamic office chair mechanism parts and synchro-tilt mechanism

Standard office chair mechanism parts include: 

  • Tilt Angle 
  • Backrest tilt lock 
  • Backrest travel restriction 
  • Height Adjustment 
  • Forward tilt adjustment 
  • Side tension adjustment crank

3. Seat pan

The seat pan is one of the areas which promote the strongest interest from users. It can be a simple design or it can be made ergonomically. There are a few types of materials that are used on the seat pan. A select number of chairs also offers an adjustable seat pan for depth, which works for people of various heights.

All seat pans are made with cushioning for added comfort. A normal seat pan should be made in a way in which it offers comfort but in which it also allows the feet to be bent at 90 degrees while touching the ground. This is recommended for proper circulation. Some of the more complex chairs one the market can also allow some adjustability for the seat pans. This can mean users can sometimes choose the upholstery materials or colors of a seat pan.

4. Chair cylinder

The next office chair part is cylinder which connects the base to the seat pan. It is made with height adjustability to suit people of different heights. In some cases, the cylinder can also be covered by a cylinder cover, which is normally made from plastic. It is also one of the moving parts of the chair which means quality executive office chairs come with premium cylinders with top durability.

office chair gas cylinder

5. Armrests

Ergonomic office chair with armrests is highly appreciated by users. As the name suggests, they support the arms while typing or while writing at the desk. A typical executive ergonomic office chair comes with adjustable armrests that can be set at various heights.


Fixed arms are also an option for some designs. Also called loop arms, these designs can be a solution that works for added aesthetics, but they can come with reduced practicality. T-armrests are among the most popular options. They are fully adjustable for height and they represent the best solution for the most comfort, regardless of the height of the users. In some cases, executive office chairs can also come with flip-up armrests. They can be recommended for those who are leaving the desk area frequently or for those who prefer to have maximum functionality with their chairs. However, these designs might not allow height adjustability. Arm pads are also added on the armrests. They offer the extra comfort needed while typing for hours.

office chair armrests

6. Lumbar support system

The lumbar support system is part of the backrest. It comes either integrated or with an adjustable design. For all people, office chairs with lumbar support is crucial to maintaining a proper working position at the desk.


Adjustable lumbar support systems are recommended for various user heights. They can be easily be moved up and down, depending on the needs of the user.

7. Office chair headrest

As its name suggests, the headrests support the head. Not all executive office chairs come with a headrest. Some designs have a headrest which is built-in the backrest. Other chairs have height adjustable or removable headrests attached on top of the backrest. Its main function is to reduce neck pain. Depending on the height of the user, the headrest should be adjustable to keep the head in a correct position.

8. Backrest

The backrest of an executive office chair joins the lumbar support system, the headrest, and the upper back support. Made to be fixed or to allow recline, the backrest has the important function of supporting the spine. It can be made from various materials. Some chairs use mesh materials for the backrest, which are recommended for added ventilation. Others use leather, for a premium feel. Some of the most affordable backrests are simply made from rubber or plastic.

The backrest also has the most important role in the position at the desk. It represents the part of the office chair which holds the users and which dictates the position of the spine for hours. Fully height adjustable backrests which can also recline are recommended for changes in the working position, which are great when it comes to reducing pressure on the lower back.

C106 black nylon backrest frame
C25 backrest outter frame
C100 light grey back backrest frame

9. Casters/ Wheels

The casters are attached to the base of the office chair. They come with the added mobility benefit and they represent one of the best options when it comes to moving the chair on the floor without actually picking it up.


Often named wheels, casters are actually inclusive of wheels and a frame that work together in a pivoting roller. As most office chair parts, casters can also be categorized according to their purpose. Soft casters are used on soft surfaces such as urethane. Hard casters are used on carpets. Depending on the type of floor surface, casters can even be replaced if needed.

office chair castors

Wish you find favorable office chairs

If you have a new project, and you are thinking how to buy qualified office chairs, maybe you could contact us, Melike can give you professional suggestion. No matter the order is big or small, Melike welcome you at any time and reply you in best way.

Leave a Reply

Open chat
Need pricelist?
MELIKE furniture
Hello dear,
This is Melike office furniture in China. How can I help you?
%d bloggers like this: