How to make my 3Rs container pallet sections

These photos show how I made my 3Rs  pallet sections. What I did was to go to a place where I thought I would find unwanted wooden pallets to use from  for example Industrial sites, building sites and where someone was having building work done to their house. The ones I used are the E.U. type to make my decking and the rest of them were of the same length slats, so all of my side supports sections I made were at the same height  with the pallet side thick lengths nailed to them at the top spaced out as I shown in my photos.