I found an old crate/pallet that had a solid bottom on it so I picked up a 12 inch x 18 foot 1 inch wood that I had Home Depot cut into 2- 4ft pieces and 2- 3ft pieces. The rest was left over stuff around the house that I had. I did built it this morning and went out and picked up some lettuce, strawberries, bell peppers, chives and green beans which I planted in the box. I made this shade cloth from left over materials from another project.