Traditional Office Chair Specifications
The specifications of traditional office chairs cover seat height, seat width, seat depth, backrest, armrests, and other adjustable features, with specific parameters as follows:
Seat height is one of the core parameters affecting comfort. The standard seat height typically ranges from 40-55 cm, with 40-50 cm being the mainstream range for compatibility with regular computer desks (approximately 72 cm in height). If the chair has an 8-12 cm height adjustment feature, it can be adjusted according to the user's height: for example, individuals who are 170 cm tall are recommended to set the seat height to around 43 cm, allowing the thighs and lower legs to hang naturally at a 95ยฐ angle and avoiding leg compression. Additionally, there are subtle differences in seat height among general-purpose chairs: hard-surface chairs usually have a seat height of 40-44 cm, while soft-surface chairs can be appropriately raised to 46 cm due to the elasticity of the material, maintaining sitting stability.
Seat width needs to meet the requirements for lateral body movement space. The basic standard is a minimum seat width of 32 cm; otherwise, shoulder or hip compression may occur due to cramped space. Mainstream office chairs are designed with a seat width of 45-55 cm, which can accommodate most body types while avoiding excessive width that may affect the natural placement of the arms.
Seat depth directly affects leg support. The standard seat depth is 40-45 cm, covering the needs of 95% of adults. When selecting a chair, note that after sitting fully on the seat, there should be a gap of 2-3 fingers between the back of the knee and the seat surface to prevent impaired blood circulation in the legs. For users taller than 185 cm, an extended seat with a depth of up to 50 cm is necessary to avoid thigh suspension and fatigue.
Backrest design should conform to the natural curve of the spine. Mid-to-high-end office chairs generally feature a curved backrest with a height of 50-60 cm, providing focused support for the 4th to 6th lumbar vertebrae and relieving prolonged sitting pressure. If equipped with an independent lumbar support, its width is recommended to be 25-30 cm, offering precise support without restricting lumbar movement.
Armrest height should be adjusted in coordination with the desk. The mainstream design allows for an adjustable range of 20-30 cm. When in use, maintain a gap of approximately 5 cm between the armrest and the underside of the desk surface, ensuring that the arms hang naturally with the elbows bent at 90ยฐ-100ยฐ, reducing shoulder and neck strain.
Other adjustable features can further enhance adaptability. Some ergonomic chairs are equipped with seat tilt adjustment (5ยฐ forward tilt and 15ยฐ backward tilt) to meet the needs of different work scenarios; the headrest height adjustment range is approximately 15 cm, accommodating the neck support needs of users of different heights. These features help users maintain a healthy sitting posture through multi-dimensional adjustments.
