Wayne Dalton Garage Door 2" Inside Sliding Side Lock. Inside Sliding Side Lock for all residential garage doors with a 2" track. This garage door lock slides into the slotted track opening where the garage door rollers sit and prevents the door from moving in this way. Most residential garage doors will have a 2-inch track. To operate, use the bent handle to slide the lock bar into the track. Do not slide this into the track if you have an automatic garage door opener installed and operating as this lock inhibits the door from moving up. Tech Specs: Plate Width 2 5/8" W x 3 7/8" H x 7/8" D; Screw Holes 1 5/8" x 3 3/8" - Center to Center; Slide - 5 3/8" L x 1 7/8" D.