Internal flush doors have a sleek, functional design that makes them common in offices and workplaces. However, they can work well in homes too.
Their construction consists of a core that provides acoustic and thermal insulation, a timber frame, and a veneer. It is not just their sturdiness that makes them great for professional applications; most flush doors are available in fire door variants too. These are rated to resist the spread of fire and fumes for 30 minutes. There are also glazed options and doors which are designed to be accessible to disabled people, as per Building Regulations Part M.