Garage Door Service Salt Lake UT A-1 Garage Door Repair 930 N Main St, Tooele, UT 84074 (435) 579-2944 https://a1garagedoorrepairutah.com/ Use a string line to validate both tracks are parallel and within the same peak. Evaluate diagonally between opposite track corners to verify they’re square with each other. We https://docs.google.com/spreadsheets/d/1eNSPIO8ftaxshXRE_BBTnNGucxca7AsaTne-cyqycrA