Contrary to the other categories (such as laminated or veneer interior doors), that can be differentiated mainly on the design, Entrance doors can differ in terms of functionality or meeting the needs of each situation. The category of laminated security doors focuses on attack resistance. On the other hand, the aim of PVC entrance doors focuses purely on insulation and the lightness of the house (by applying glass designs on the door itself). Last but not least, aluminum doors can support and be included into the both of the previous elaborated categories, based on the wills and needs of each customer.