The largest pool made by American Fiberglass Pools of Texas is Frio, 19’ x 43’ and 8’-6” deep. If you don’t calculate the length of the seats at the deep end the true size of the pool will be 19’ x 41’-6”. It is the largest pool that is available on the market and definitely the deepest. There are couple of pools on the market from other manufacturers with close enough measurements, but the only problems with this size is a road restrictions to transport this monster on some States. Who wouldn’t want to have such a sizable pool for a great swim?