I purchased a cover that was 2 feet bigger then the pool just to make sure it covered well. It hangs over the sides of my above ground pool but does not touch the ground. Perfect fit in my opinion. They get 4 stars because when I ordered the web site fields were buggy and i couldn't change my billing address from my delivery address and when the cover arrived there was no tensioner for the wire that keeps the cover from blowing away In our santa ana winds. Great cover with room for improvement on the company side not the product side.