A landlord from San Antonio says:
July 16, 2014
This is from a store front door built in 1972. Backing is 1/2" wide plastic, with a single brush (?) that may have been 3/8" or 1/2", but I lean to 3/8". Center has a total of 6 doors 7 feet tall, with two sides of this each.
Paul from SWISCO responded:
July 21, 2014
Check out our 58-050 and see if this could possibly work for you.