building tank stand questions.

[Mrfish55]

I have used 2 layers of 3/4" ply doubled up (making a 1 1/2"x4" beam), screwed and glued on most stands I have built, I find it to be more dimensionally stable than solid wood stock (no warp or twist) and plenty strong. On my 180 I originally installed a center brace but did not need it as there was no deflection at all.