To be honest, Planet isn't as precise as I would have liked and the stand wasn't 100% square. Inside dimensions were supposed to be 18 x 18 square, but it isn't and I had to build and stand within to hold the 18 x 18 sump which is actually square. It was supposed to fit inside and drop down more. but it doesn't. So, i can't put the lower hinge on the door. Any ideas on how to secure that lower part would be greatly appreciated.