I'm not a very good carpenter so I had a real carpenter build my stands. One was a whole 1/4 off. I was able to fix it although fix was very stressful because the 100 gallon tank was full of water and Discus. My fix actually worked. I don't think that 1/32" off anywhere would cause you a problem. Put a 3/4" sheet of styrofam underneath the tank and your small problem should be solved once the tank is filled.