Is this a problem. My fishtank is slightly deeper than my stand. The fish tank is about 122 cm x 63 cm. The board it is on is 122 cm x 61 cm. This is an all-glass tank, aproximately 565 liters. The plastic frame under the tank appears to be about 2.5 cm wide. About a centimeter of this is overhanging and a little over a centimeter of this is ontop of the board. I probably got to go get a bigger board, but I'm not looking forward to lifting the tank to get that in place.