What is an intermediate post? Why use it?
An intermediate rolling post serves several functions. For extremely large doors the intermediate post allows the door to be fabricated, shipped and subsequently installed in two sections which are then bolted together in the field. This allows easier handling for movement of the door into the building, up stairs, etc. Additionally, use of an intermediate post allows two doors to be joined together to form a T. The intermediate rolling post will have an interlocking jamb molding affixed to it to accept the second door. Also on larger openings the intermediate post provides a mounting point for foot bolts most commonly used to add security and stability to the door.