Most of them are relatively safe, but there are also cases of collapse. Some students get on and off the bed and the factory only weld two or one welding point around it, which makes the bed for students to get on and off naturally unreliable and easy to collapse under load and shaking for a long time.

Some students bunk bed, steel pipe quality is not up to standard, poor quality steel pipe potholes, scarred. Pockmarked surface is an irregular concave-convex defect on the surface of steel due to serious groove wear. Scar is caused by uneven steel pipe material and many impurities. Due to the pursuit of profits by fake and shoddy steel pipe manufacturers, excessive groove rolling and impurity addition often occur.

China's national mandatory standard for bunk beds has been implemented for 9 years, but there are still many bunk beds in the market that are unqualified, which has great security risks. Experts in the industry said that bunk beds accidents in school dormitories involve personal health and safety issues, and national mandatory standards are the bottom line and should be applied. Some enterprises do not produce according to the standard, which is one of the main reasons for the frequent accidents of falling out of bed on campus.

In addition to many unqualified bunk beds in the market, the school ignored the safety indicators stipulated in the standards when purchasing, which is another reason for the safety defects of students' bunk beds.