Double 55 gallons on carpet?

[fishhead0103666]

I found some wood at Lowes, 8' by 4' and 3/4 of an inch thick, here's a pic of the tag that was with them.

 

[Jexnell]

Might want to find marine grade, it's nade with waterproof glue.

 

[fishhead0103666]

Do ya reckon Lowes or home Depot has it?
Well actually I'm planning on using some water proofing glue or something similar. I've used it before on the wood under my 55 that I have up and running.