The desktop height of each model is consistent with international standards, and the seat height is 20mm, which is low10 mm. The size of desks and chairs in primary and secondary schools: the desktop width (left and right direction) is changed from the original 550 mm ~ 600mm (for single use) and 1000 mm ~ 1200mm (for double use) to 600mm and 1200mm respectively.
The national standard GB/T 3976-2002 "Functional dimensions of school desks and chairs" stipulates 10 kinds of desks and chairs according to the height of teenagers in China. According to the size of desks and chairs in GB/T 3976-2002 and 10, the school preset the applicable standard height, student height range, color code and reference model of desks and chairs.
Extended data:
Teenagers are in a growing period, and desks and chairs with appropriate sizes are conducive to the healthy growth of students. If the desks and chairs are not the right size, it will have a negative impact on students' health. Too high desks and chairs will make students' glasses too close to the desktop, causing visual damage; If the tables and chairs are too low, students can't stand out when sitting, which leads to the curvature of the spine. Attention should be paid to the following aspects:
1. The government appropriately arranges financial funds to transform school desks and chairs, and buys different types of desks and chairs according to the height of students.
2. Nine-year compulsory education schools should gradually prepare adjustable desks and chairs. For schools with tight financial resources, each classroom should be equipped with at least two different types of desks and chairs.
3. The education authorities should take the improvement of school desks and chairs as an important part of the daily management of school education, conduct supervision and evaluation, and notify those who do not meet the standards.
4. It is suggested to adjust the height of desks and chairs once or twice every semester to adapt to the monthly increase of primary and secondary school students.