A hinge secured at the end of a door section. This hinge enables door sections to swivel as the door is brought up and down. Hinges also secure the track roller. They recieve numbers and are graded to make sure that, when closed, the door is flat against the jambs.
These panels are between stiles on the inside of the door. They are numbered starting from the left and moving right.
A hinge attached to the end of door sections that allow pivoting as the door closes and opens. These hinges grasp the track roller and are numbered and sequential for proper placement and to allow the door to lie flat against the jambs when the door closes.
On a sectional door, this is one segment of the door.
Lining that acts to limit, maneuver, or stop friction. It can be permanent or removable.