"The rink is 35' x 55' and built with 10 foot 2 x 6 treated lumber attached together with treated 2 x 4's. I used metal corner brackets to fasten the sides together and put in wooden stakes (about every 4 feet) to hold it all together. I bought a 1-piece 40'x60' tarp at a building supply center and tacked that down once all the water was in. We had 4 hoses going full blast for 3 hours to fill it up." 

                   Good job and thanks for the picture, Steve.