Fopr [censored] years I have struggled with garage door that is not "off its trolley" (overhead carrier), but has subsided, (or the earth has subsided; it's on concrete) such that the door scrapes along the concrete.
I have been moving it on a pipe, but want to do something less primitive.
Do they make anything that can be screwed to both sides of the door and has good-sized wheels to move door more easily?
TIA