Footprint of a 125

[Tonynlo]

I just ordered a 125. 72Lx18Wx24H. I am building the stand before I get the tank. Do I make the stand 72x18 or should I make it a hair larger to accommodate the bottom brace?

 

[GMaquarium]

What brand tank?
I have actually noticed a slight difference between Marineland and All Glass 125 gallon