6 Panel Clear pine Unglazed Internal Bi-fold Door (H)1981mm (W)686mm. This internal bi-fold door means that you can add natural style to your living space. It folds as it opens to half the width of a normal sized door which is ideal for areas with limited space like spare bedrooms pantries & walk in wardrobes. This door can be hung left or right handed so you choose which way it opens.