One, standard height dimensions for children's chairs
It is recommended to purchase an adjustable height, rising-type children's desk and chair. The design of a children's desk should adhere to ergonomic principles, and the dimensions of the desk and chair should be appropriate for the child's height, age, and body type to ensure healthy growth. Generally, the standard dimensions for a children's desk are: length 1.1~1.2 meters, height 0.76 meters, and width 0.55~0.6 meters. The standard dimensions for the chair are: seat height 0.4~0.44 meters, and the overall height should not exceed 0.8 meters, which can generally meet the needs of school-age children.
Two. The dimensions of children's desks and chairs should adhere to which standards.
1、Chair Seat: The chair seat is inclined backward at an angle of 0° to 2°. When the seat is concave along the center line, the radius of curvature is greater than 500mm. The front edge and corners of the seat are rounded.
2、Backrest: The backrest should slope backward above the backrest points, with an angle between 6° and 12° relative to the vertical surface. The front curve of the backrest should be a smooth curve, with the upper and lower edges processed into arcs. The radius of curvature of the concave part of the backrest should be greater than 500mm. A clear space should be left between the bottom edge of the backrest and the back edge of the seat.
3. Product Technical Requirements and Test Methods: The allowable deviation for the height of the desktop and seat is ±2mm, and the allowable deviation for the distance between the backrest and the seat height is ±15mm. Other dimensional deviations are as specified in QB/T 3916.
4. Material requirements, process requirements, coating physical and mechanical properties requirements, and testing methods are as specified in QB/T 3916. The desktops, seat surfaces, and backrests of the steel and wood desks and chairs are made of wood. The coating color should be light and uniform, resembling natural wood.