In this  shot, we see the inaugural Zayre store, which opened, in Hyannis, Massachusetts, in June 1956. Upon its grand opening, the store measured only 5,000 square feet.
Photo from http://pleasantfamilyshopping.blogspot.com


Here we see a Zayre store in Addison, Illinois. Obviously, by the time this location was built, the size of stores had been expanded considerably...to around 80,000 square feet.
Photo from Wikipedia / Joe Archie


A typical Ames location, which had been shuttered by the time this photo was taken. Stores originally opened as Ames encompassed between 41,000 and 50,000 square feet.
Photo from "Zayre88"