1. Measure the openings height and width, of your existing garage door (feet and inches). It is probable that the door is commonly-sized; even if it’s not, Delden can provide custom-sized doors.
2. Measure available “sideroom”: 3 1/4″ is required on each side of the door opening to properly install the vertical track members.
3. Measure the area between the top of the door’s opening to the ceiling; this measurement, called “head room,” determines whether or not a garage door has adequate space to “store” in the “up” position. At least 4″ is required, and 12″ is the minimum amount of space necessary for a standard residential installation.
4. Measure the distance between back and front walls of the garage. Door height plus 18″ is required to correctly raise a garage door. If obstructions exist within the travel path of a door moving upward, relocation of the obstructions will be necessary to allow the door to properly rest in the “up” position.
Special modifications may be available to accommodate odd dimensions; take great care in making these measurements so your needs can be accurately determined.