When buying direct, you are responsible for the measurements. Mistakes here can lead to costly shipping returns. Use this checklist from and The Home Depot :
Tips for commercial overhead door installation and replacement
: Measure from the top of the opening to the ceiling. Standard systems usually need 12–15 inches . buy garage doors direct
: Measure the rough opening (the inside of the door frame).
: Available through major retailers like The Home Depot , where you can buy the door directly and either DIY the install or hire their contractors. 2. Measuring Your Garage (Critical Step) When buying direct, you are responsible for the measurements
: Ensure there is at least 3-3/4 inches on each side for the vertical tracks.
: Specializes in commercial and residential metal roll-up doors sold factory-direct to the public. Standard systems usually need 12–15 inches
: Measure the distance to the rear of the garage. It should be the door height plus 18 inches (or 50 inches if adding an opener).