Sorry, guys, I forgot. Seems like the manager was a teensy bit off (but I am afraid to tell him!). He said the common dimension is 6 feet by 4 feet. Hockey - size of the goal; baseball - size of the batter's box and, this is where he was wrong, in basketball the back board which is, in fact, 6 feet by 42 inches. I know I know but he doesn't know I know, so all is good