Hi, I have a 13 foot tall garage door that opens 12-1/2 foot under normal operating conditions. I need more of an opening to get my camper in the building so I have been propping it open with a 2 x 4 and getting the 13 foot. Does anyone have a solution , like a catch , etc ? Oddly enough my two 12 foot tall doors open the full 12 foot , the 13 foot door in question only 12-1/2 foot good figure.
