I have a Slimfold, 60 inch, 4 panel metal bi-fold door which needs a new lower track. The old track is 11/16" wide and 11/16" high.
Paul from SWISCO responded:
January 31, 2019
Starting with your tracks, our 21-403 should do the trick. You can reuse your pins, but if you rather replace them, then look over both our 21-001 and 21-007 for consideration.