Hello, I hope all is well for everyone.

I am interested in building DWC rafts with tables above them to sit cut IBC totes on top of. First do you think the lettuce growing in the raft would get enough light(outside in greenhouse)? Also if I were to try get certified organic in the future would the 4x4 post used as legs for supporting the tables above the rafts cause issues?

If they were to cause issues with becoming certified organic what about using square steel to support the tables and brace the sides of the rafts?

Thanks