What material is the mirror sliding door? Is 5MM too thin to be safe?

At present, most of glass sliding door is 5MM glass.

As far as safety is concerned, there is no problem of violent impact without external force.

If you are really afraid of broken glass hurting people, there is explosion-proof glass in the sliding door shop now. Ordinary glass is covered with an explosion-proof film. .

Even 12MM tempered glass will break if it is impacted by external force. .

Just be careful with things. Gently pull and lower the sliding door, and clean the lower track regularly.