Handan Office Chair Specifications
No unique information specifically targeting Handan office chair specifications has been found at present. The conventional specifications of office chairs can be used as a reference, as detailed below:

The design of office chair specifications requires a comprehensive consideration of ergonomic principles and actual usage scenarios to ensure the comfort and health of users. The core parameters include seat height, seat depth, seat width, backrest height, and armrest height, each with a clearly defined reasonable range.
Seat height is a key factor affecting sitting comfort. The seat height range of conventional office chairs is typically between 400 mm and 550 mm, designed to match the height of standard office desks (700 mm to 760 mm). When the seat height is coordinated with the desk height, users can maintain a posture with elbows naturally bent and feet flat on the ground, avoiding shoulder, neck, or lower back fatigue caused by height mismatch.
Seat depth directly affects the support effect on the thighs. A reasonable seat depth range is 400 mm to 500 mm, designed to support most of the length of the user's thighs while avoiding pressure on the blood vessels and nerves behind the knee. If the seat depth is too short, it may cause the thighs to hang in the air; if too long, it will press on the knee, causing discomfort.
Seat width needs to accommodate the needs of users with different body types. The conventional seat width range is 450 mm to 600 mm. A wider seat surface can provide sufficient space for larger users while avoiding a cramped sitting posture due to a narrow seat. Additionally, seat width design should also consider the overall structural stability of the chair.
Backrest height should fit the curve of the human spine. The backrest height of ordinary office chairs is usually between 500 mm and 700 mm, covering the lumbar to thoracic regions and providing basic support. Some high-end models are equipped with adjustable lumbar support modules, which further alleviate prolonged sitting pressure by precisely positioning the lumbar intervertebral spaces, suitable for people who need to work at a desk for long periods.
Armrest height should match the height of the desk. The conventional armrest height range is 200 mm to 300 mm, serving to support the weight of the arms and reduce the burden on the shoulder muscles. If the armrests are too high, it may cause the arms to hang in the air; if too low, they will not provide support and may even force the user to lean forward, disrupting the correct sitting posture.



