Stainless steel is certainly one of the most durable and affordable materials for building furniture and other items. Stainless steel safety doors offer durability and strength that would never be found in other ingredients like wood, plastic, cement, glass, or even iron. It is one of the most long-lasting materials for doors and can last a lifetime, even if treated with low maintenance. Furthermore, unlike iron, stainless-steel doors do not catch rust and are, therefore, long-term investments for your home.