plywood tank bottom support

  • We are currently upgrading MFK. thanks! -neo
If im building a 300gtank would I neccesarily need 2x4 supports for the sides and back? Ive seen tanks done with and w/o actual supports. I plan to start building mine tomorrow and Im just gathering as much opinions as i can
 
For my 240 I am doing unsupported plywood. 8x2x2. It is not recomended to do a ply only tank over 24".

I also would not do any larger than I have in ply only. At least not 3/4". I would maybe do like Grossgraphix and do 1.5" (2 sheets doubled up).
 
BadOleRoss;4012745; said:
... You are dealing with several hundred gallons of water...

Actually, the tank I'm considering this for is going to be a much smaller project. Roughly 48"X28" footprint and only about 90 gallons of water. I'm thinking of including some struts on the tank bottom which will line up and fit between the cross beams on the stand so that will line up perfectly with the stand.
 
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