Fish tank stand wider than tank?

[moonwalker]

Hey so i have a tank setup on a wooden stand i made. Today i was just thinking is it bad if its a 90 gallon and 18 wide and the stand is 23 wide? all 4 corners are supported and the tank is on a 1 inch thick sheet of plywood on top. The back isnt on the full ledge its more towards the middle so the plywood holds it but the corners are all on the 2/4's . Will this collapse one day? its been a year no problems or bowing?

 

[Reef Lobster]

As long as you don't try to build the base more than 10" wider than your tank you should have no flex in that piece of plywood at all.