What is the difference between hollow core and solid core doors?
A solid core door is, as the name implies, one in which the structural inner part of the door is solid. This inner core can be made of a variety of materials. These include a mineral-based material (used in fire-rated doors), particleboard, wood blocks or composition materials. A hollow core door denotes an assembly using strips or other units of material with intervening hollow cells. Whether hollow or solid core, all doors then have face panels on the exterior.
