Office Chair and Sofa Dimensions
The common dimension ranges for office chairs and sofas are as follows:
1. Seat Height
According to the industry standard QB/T 1952.1 - 2023 'Soft Furniture - Sofas', the front seat height (the vertical distance from the seat surface to the ground) is typically 370 - 480mm. The national standard further specifies that the seat height of a single-seater sofa should be within the range of 360mm to 420mm, while common seat heights for chair and stool furniture are 400mm, 420mm, and 440mm. This dimension range must take into account ergonomics to ensure that the user's thighs are parallel to the ground when sitting, avoiding leg suspension or compression.
2. Seat Depth
The industry standard for seat depth (the horizontal distance from the front to the back of the seat surface) is 480 - 600mm, consistent with the national standard. This range can accommodate users of different body types: if the seat depth is too small, there will be insufficient support for the buttocks and back; if it is too large, it may cause the waist to be suspended, increasing fatigue. In office settings, it is recommended to choose a moderate size based on usage frequency. For example, for long hours of office work, 500 - 550mm can be selected to balance comfort and activity space.
3. Seat Width
The national standard stipulates that the front seat width of a single-seater sofa should not be less than 480mm to ensure sufficient support for the shoulders and buttocks during single-person use. In actual products, the width of sofa chairs is usually between 650 - 800mm, with common dimensions such as 620680980mm and 650700990mm. Width selection should consider spatial layout: compact models around 650mm can be chosen for small apartments, while larger spaces or multi-person usage scenarios can be expanded to 750mm or more.
4. Overall Dimensions
The length of sofa chairs varies depending on their function: the common length of a single-seater wooden sofa chair is 900 - 950mm, while the length of a soft sofa chair may be extended to around 1000mm due to armrest or backrest design. For example, a sofa chair with dimensions of 6807201000mm has a length (1000mm) that provides more ample leg stretching space, suitable for leisure scenarios.
Summary: The dimensions of office chairs and sofas should be selected based on a combination of ergonomics, usage scenarios, and spatial conditions. Seat height, seat depth, and seat width should comply with industry standards, while overall dimensions should balance functionality and spatial adaptability.
