Hollow metal door is one of the most common option for commercial, residential and industrial environment due to its excellent product characters. A hollow metal door consists a steel frame that has steel panels laminated to both sides.
Hollow metal doors are so tough and strong that can take a hard beating. Based on door height, they might be installed with 3 to 5 hinges per door slab. Surprisingly, a hollow metal door is also able to be finished with plastic laminate, wood veneer or stainless steel to achieve a desired aesthetic effect.
Technically speaking hollow metal doors are actually not ‘’hollow’’ since they are always infilled with some material. No matter it’s honeycomb paper( only provides a function of supporting) or polyurethane( provides a function of supporting and thermal insulation), some better doors are even equipped with steel tubes inside door slab which will provide a much stronger support. Usually we call it a steel stiffener door.
Hollow metal is able to be equipped with knob lock, lever handle lock, mortised lock, panic push bar, car reader and etc. Sometimes vision panel and louver will be also equipped onto a hollow metal door.