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How to Measure Your Garage Door Size

Download Lux Garage Doors Blank Opening Drawing

Opening width:

Step 1: Measure the width of the opening at the widest point. This is the distance between the right and left sides of the finished opening. For best results, the inside of the garage door opening should be framed with 2" x 6" wood. Look for general irregularities, such as jambs which are not square

Opening height:

Step 2: Measure the height of the opening at the highest point. This is the distance between the floor and the top of the finished opening. Look for general irregularities, such as un-level floor.

Sideroom:

Step 3: Measure the width of the areas beside the openings. Up to 5" is required on each side for installation of the vertical track. If this is a 2-door installation, center post should be a min. of 10" wide.

Headroom

Step 4: Measure the area between the top of the door opening and the ceiling (or to the lowest obstruction at ceiling).

Backroom

Step 5: Measure the distance from the opening to the rear of the garage or nearest obstruction. The door's backroom requirement is the door height plus an additional 18" for manual lift doors. If an electric opener is to be installed, the door's backroom requirement is the door height plus an additional 4'2".

 

Additional items to observe:

■ Verify electrical outlet for door opener use.
■ Note any lights or stairs in the way.
■ Verify all jambs are in good condition, header is stable.
■ Verify the level of the floor. Was the previous door a custom fit?
■ Note any pipes, duct work, etc. above the door that might obstruct operation of the door.