The Rectangle pool shape has been around for a long long time. This is not to say that they aren’t popular! Every year we see new trends in pool shapes, but the Rectangle is usually installed 80% of the time in our customers backyards. A straight edge pool tends to give you the “most bang for your buck” as the Rectangle is the biggest square foot sized pool (All other shapes fit inside a Rectangle of the same size). Rectangle pools are also great for people wanting to keep straight lines and have a more modern looking pool. The most popular sizes are: 12’X24′, 14’X28′, 16’X32′, 18’X36′, 20’X40′.