ALT BF73 – the system of bi-folding doors is a modern, exclusive solution used in both residential and commercial markets: glazed openings for terrace exit, conservatories, effective application in show rooms, conference halls, hotels etc.

ALT BF73 allows to organize not only functional glazing of the large translucent openings, but also provides an attractive exterior and serviceability.

The functionality of the system makes it possible to realize the internal or external opening, to shift up to seven sashes in one direction. In the folded position, the sashes don’t occupy much space and release a wide opening, allowing to unify several rooms or a room with a street.