Xuhui District Office Chair Specifications and Dimensions

The specifications and dimensions of office chairs in Xuhui District typically cover key dimensions such as seat height, seat depth, seat width, backrest height, and armrest height, with specific parameters varying based on design type and functional requirements. The following provides an explanation from the perspectives of core parameters and common ranges:

Seat height is a core parameter affecting sitting comfort. The seat height range of conventional office chairs is usually between 400 mm and 550 mm. This design primarily matches the height of standard office desks (700 mm to 760 mm), ensuring that when the user sits down, the desktop and elbow height are coordinated, preventing the arms from hanging in the air or being raised too high. Some sources mention a seat surface height of 45 cm to 50 cm, which is generally consistent with the above range, with differences possibly stemming from measurement methods or minor variations in statistical samples.

Seat depth directly affects leg support and is typically designed to be 400 mm to 500 mm. An appropriate seat depth should support two-thirds to three-quarters of the user's thigh length while avoiding pressure on the blood vessels and nerves behind the knee. If the seat depth is too short, it may cause the legs to hang in the air; if too long, it may press on the knee, causing discomfort.

Seat width needs to accommodate the needs of users with different body types, with a conventional range of 450 mm to 600 mm. This width ensures a natural sitting posture for the user, preventing body distortion or excessive local pressure due to insufficient space. Some sources mention a width of 50 cm to 60 cm, which is consistent with the above range and suitable for most standard office scenarios.

Backrest height is designed based on the support needs of the human spine. The backrest height of ordinary office chairs is usually between 500 mm and 700 mm, covering the lumbar to thoracic spine regions and providing basic support. High-end office chairs may be equipped with adjustable lumbar support modules that can be precisely matched to the lumbar curvature through up-and-down or front-and-back adjustments, relieving fatigue from prolonged sitting. Other sources mention a backrest height of 90 cm to 110 cm, which is more commonly seen in high-back office chairs or ergonomic chairs, extending to the scapular region and providing more comprehensive back support.

Armrest height needs to be coordinated with the desktop height and is usually within the range of 200 mm to 300 mm. An appropriate armrest height allows the arms to hang naturally, with the elbows bent at 90 to 100 degrees, reducing pressure on the shoulders, neck, and wrists. Some office chairs with adjustable armrests can further adapt to different usage scenarios, such as typing, reading, or meetings.