I've been gathering materials to build a cart for myself, based on various pictures I've seen on this website. I've bought those filled wheelbarrow tires, which are pricy but will never go flat. I've also decided I like the idea of a handle (like on the cart timber goddess posted), so that I can wheel it around easier when empty. I had planned to have the handle extend out from the top of the cart, not the bottom, so that it wouldn't get in the way when loaded and moving timbers. I don't see any need to have the handle reversable. Finally, I think I'll weld mine out of tubing instead of making it out of wood as it seems that I could then use a longer, thinner, handle. I'll post pictures and costs of materials when it warms up so I can weld it in my cold garage.