This design is renowned for the way the door opens and closes by folding up like a concertina. Upon opening, the door panels (or leaf) slide to the side to stack neatly to the outer or inner side fo the door frame.
This function leaves a huge wide open space through which you can move or just enjoy the view.
Bifold patio doors, as briefly mentioned before, are made up of 3 or more door panels side by side. The wider the opening you have the more panels can be fitted.
Mounted on super easy gliding underfoot or overhead tracks, these doors are so easy to operate, you would not realise their actual weight.
You can buy these types of doors in any of 3 types of material; Aluminium, Timber or UPVC. Aluminium and timber bifolds come in different colour options, even one where you can have the inside of the door a different colour to that which is on the outside surface.