Good morning, we are finally going to install our 16' x 32' x52" Intex pool. We had a much larger 6" cement pad laid that will some day become my shop. We want to put a EXP foam board under the pool. How large do I make the foam board pad? It comes in 4 x 8 sheets. I have never set up a pool with a frame. Do I need to make the pad a little larger than the pool dimensions? It seems like it would be very hard to set it up if the pad and the pool were both the exact same size. Thank you for your help.