Q. What is a hollow-core flush door? What dimensions should be followed?

Hollow-core flush doors are hollow on the inside and have a honeycomb-based supporting system. As a result the doors are lighter than other types. However they lack the strength of solid core flush doors. Like the solid core flush door the stiles top bottom and intermediate rails should all be at least 7.5cm wide. In addition the door's plywood thickness should never be less than 6 mm. Plywood sheets and face veneers are bonded to the core under pressure.