How are security doors classified?

The levels of security doors are classified according to the national standard GB 17565-2007 Security Door, which is mainly divided into the following four levels:

C-class security door: suitable for ordinary houses, apartments and other ordinary houses. The door leaf thickness of this level of security door is generally above 50mm, the thickness of steel plate used is above 0.5mm, and the lock must be equipped with at least two lock cores.

B-class security door: suitable for high-grade houses, villas and other places that need high security. The door leaf thickness of this level of security door is generally above 70mm, the thickness of steel plate used is above 1mm, and the lock must be equipped with at least three lock cores.

A-class security door: suitable for banks, jewelry stores and other places that need high security. The door leaf thickness of this level of security door is generally above 90mm, the thickness of steel plate used is above 1.5mm, and the lock must be equipped with at least four lock cores.

E-class security door: suitable for important national institutions, nuclear power plants and other places that need high security. The thickness of the door leaf of this level of security door is generally above 120mm, the thickness of the steel plate used is above 2mm, and the lock must be equipped with at least five lock cores.

The above-mentioned security doors need to be tested and certified by professional institutions and obtain corresponding signs and certificates. When purchasing security doors, consumers can choose appropriate grades and brands according to actual needs, and pay attention to purchasing products from formal channels to ensure safety and reliability.