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Measure for a roll up door

How to measure your finished frame

Roll Up Doors Installation Instructions


How To Measure For Your New Roll Up Door


Use the illustration and instructions below to measure your garage roll up door. Take these measurements and call us to purchase the roll up door that is right for you.

Step #1 Measure the width of the rough opening at the widest point. This is the distance between the right and left sides of the rough opening. Look for general irregularities, such as jambs which are not square.

Step #2 Measure for side room. 4" - 9" (depending on door) is required on each side between the opening and the wall or other obstruction for installation of the vertical track, this area needs to be capable of flush mounting the tracks and clear of any obstructions. See Check Clearance page.

Step #3 Measure area labeled "headroom". Headroom is the distance between the top of the door opening ("jamb header") and the ceiling (or ceiling to floor joist). 15 ½” of headroom is required for heights up to 7’ 4”, and 7’ 5” to 8’ 8” requires 16” of headroom and 8’ 9” to 10’ requires 17” of headroom (examples taken from model 650, check other models for their headroom requirements).

Step #4 Measure area labeled "back room". Back room is the distance measured from the door opening going toward the back wall of the room.

For more information about the different terms used in this page, go to our glossary of terms page

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, ductwork, etc. above the door that might obstruct operation of the door.

If you have any more questions about measuring for your door, one of our Doors Direct specialists will be happy to help you.

How to measure for your Roll Up Door installation

Some of our most popular roll up door sizes

Below you can find pages that will show you all the door models available in some of our most popular sizes. The width and height measurements cover down to the next lowest size plus 1 inch, for example an 8 foot wide door would cover from 7 feet 1 inch up to 8 feet.

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