Prefabricated door with frame - has grooves in each upright on opposite sides with sealing strip between

摘要

The prefabricated door with frame has two uprights surrounding the doorway and joined by a lintel at the top. On the exposed side, each upright (2,3) has two grooves (8,9) on opposite sides, with a central sealing strip (10) between them. Recesses can be formed in or near each groove to take fixing devices for the hinges, so that the door can be hung on either upright and on either side of the frame. Other recesses can be provided to take the door lock.