table

Hey, so I have a 4 x 8 table i plan on setting up with rockwool. I cant find an answer really anywhere. What should I line the table with? Coco Mat has seem like the best choice. Would I still need a drop ceiling plastic grid type thing to keep it off the bottom of the table? Or plastic plastic...

Trying to set up a table for some coco pots in a 3x3 tent. I can't find a decent tray thats the right size...am I missing something? If i put a 36" tray in a 36" tent, that will totally block my intake vents... how do you guys use these trays such as botanicare's od series? Do you really need to...