the main question is wood or steel? im thinking about building my own trailer, but im torn weather or not to use a wood deck or steel diamond plate deck. im sure the supports would have to be different for each, also trying to price it out. im also conserned about weight. is 1/8" diamond plate enough with supports every 2 foot? id use 2x6 treated if i use wood, but what would be a good spacing for the supports, 16"? id probably use 4" c channel for the deck frame, its going on top of another frame otherwords i would use 5" or 6" what i have planned is 18' 8' wide, the heaviest thing it will carry is my truck.