Its just 4 sides at the moment. Wasn't sure if it realy needed to have a bottom since i am only going to be putting about 18 inches of water in it. this is my first attempt at a pond. The sides are 24 inches tall. the demensions are 7 by 3 by 24inches. I am going to be framing the top with 2 by 6's once the liner is in, to act like a seating area. Also i am going to be lining the entire thing with insulation foam to hold in the heat.