If you are building your own garage, there are some specific clearances that must be met in order for the garage door to run smoothly and function properly.
With the door in the up position, place a 2×4 or something with about 2” of height on the ground in the path of the door. Send the door down again, and the door should stoop and reverse when it hits the obstruction.
If any of these systems are failing, your door and operator should be checked and serviced by a qualified technician, and the technicians at Door # One would be glad to help with any of your garage door issues. Book a service appointment today!