Dimensions of Bedroom Office Chairs

The dimensions of bedroom office chairs should be determined comprehensively based on the usage scenario and ergonomic principles. The common parameter ranges are as follows:

I. Basic Dimension Ranges (General Bedroom Chairs)

1. Seat Height: It is recommended to be controlled between 40 - 50 centimeters. This height ensures that the user's feet can rest flat on the ground, preventing impaired blood circulation in the legs or fatigue from prolonged sitting due to suspension. If the chair is used beside a dressing table or desk, it should match the height of the tabletop (usually 70 - 75 centimeters) to maintain a comfortable posture with the elbows naturally hanging down.
2. Seat Depth: A golden range of 38 - 44 centimeters is recommended. A seat that is too shallow will cause the front part of the thighs to be suspended, putting pressure on the ischium; a seat that is too deep may compress the blood vessels and nerves behind the knees, causing numbness. When testing, with the back pressed against the chair back, the seat surface should be able to support more than two-thirds of the length of the thighs.
3. Chair Back Inclination Angle: The optimal range is 90 - 120 degrees. A 90-degree angle is suitable for focused reading or work, while a 120-degree angle can disperse the pressure on the back and is suitable for short breaks. A chair back with an adjustable angle can adapt to different scenario requirements and enhance usage flexibility.

II. Standard Parameters for Office Chairs Used as Bedroom Chairs (Based on 'QBT 2280 - 2016')

1. Seat Height: ≥380 millimeters (i.e., 38 centimeters), and the seat surface should have a lifting travel of ≥60 millimeters to accommodate users of different heights.
2. Seat Depth: 340 - 540 millimeters (34 - 54 centimeters), covering the body size differences from children to adults.
3. Seat Width: ≥360 millimeters (36 centimeters), ensuring sufficient support on both sides of the buttocks to avoid pressure from prolonged sitting.
4. Back Height: ≥275 millimeters (27.5 centimeters), covering the lumbar to thoracic spine area to provide complete back support.
5. Armrest Parameters: The inner width should be ≥440 millimeters (44 centimeters), and the height range should be 160 - 250 millimeters (16 - 25 centimeters) to adapt to the natural placement of the arms and reduce shoulder and neck pressure.

III. Other Common Sayings

1. Seat Height: Generally 40 - 50 centimeters, preferably adjustable to accommodate different heights.
2. Seat Width: 45 - 55 centimeters, enough to accommodate the buttocks with some extra space.
3. Seat Depth: Approximately 40 - 50 centimeters, ensuring that the buttocks are fully seated and the area behind the knees is not compressed.
4. Chair Back Height and Width: The chair back height is 60 - 80 centimeters, and the width is 40 - 50 centimeters, providing support for the entire back.