Lost A Thread - Want to begin gathering Supplies

[Chosen]

I was following a thread a few weeks ago. An individual was using white fence posts from HD to construct an Aero system. I checked the DIY and "My Rollitup" with no luck.

I want to construct something that will sit right on the floor to gain an 6-8 inches over soil pots.

 

[Chosen]

I guess this is a lost cause. I swear I read the thread in the DIY and only about a week ago. He/she used white fence posts from HD and the system laid flat on the floor.