designed to bring in as much natural light from the outside as possible, french doors serve as a very popular door type in the UK. They can open either into the room or outside and are usually used as a patio, balcony or garden door. Available in varied colours, they also can be made out of different materials such as uPVC, aluminium or wood. The great ventilation option is another key feature french doors are known for, as they open up completely, enabling the room to be filled in with fresh air properly.
