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Office Chair Base Height

Admin October 14, 2026

The base height (seat height) of an office chair typically ranges from 360 to 500 millimeters, with specific ranges varying slightly depending on standards and application scenarios. Here are the details:

National Standard Range

According to the regulations of GB3326-1997, the seat height of an office chair must be controlled between 400 and 440 millimeters. This standard is based on ergonomic design, aiming to accommodate the leg length and sitting posture needs of most adults, ensuring that when both feet are flat on the ground, the thighs and calves are in a natural perpendicular state, reducing fatigue from prolonged sitting.

Adjustment Range of Mainstream Products

Most office chairs on the market support height adjustment functions, with an adjustment range typically from 360 to 480 millimeters. This design takes into account different usage scenarios (such as pairing with height-adjustable desks) and variations in user body types (such as individuals ranging from 150 to 190 centimeters in height). It achieves stepless adjustment through pneumatic rods or mechanical structures to meet personalized needs.

Common Height Range for Adult Chairs

For adult users, office chair heights are mostly concentrated between 400 and 500 millimeters. This range covers the comfortable sitting posture needs of individuals with standard body types (heights ranging from 160 to 180 centimeters) while also accommodating some special scenarios (such as use with high stools). If the seat is too low, it may cause leg compression; if too high, it may lead to shoulder and neck tension.

Height Selection Recommendations

  1. Static Use: Measure the distance from the ground to the back of the calf with both feet flat on the ground and knees at a 90-degree angle, and choose a seat height close to this measurement.
  2. Dynamic Adjustment: If frequent changes in sitting posture are required (such as leaning forward for work or reclining for rest), prioritize models with a wider adjustment range (such as 360-480 millimeters) and use them in conjunction with adjustable lumbar supports and armrests.
  3. Special Needs: Users who are taller than 185 centimeters or shorter than 155 centimeters are advised to choose products that support extended adjustments (such as raised bases or lowered pneumatic rods) or use footrests to assist in adjusting their sitting posture.

Choosing the right office chair height can significantly enhance comfort and work efficiency. It is recommended to consider your own body type and usage scenarios comprehensively.