After several YEARS of trying to find track building and design info on the web, I went ahead and did it on my own, no guidelines. I have a 7,000 square foot track in my backyard. The last two years, I have used the track diagram from RC Car Action's coverage of the Gas Nationals. I use a 40 hp tractor with a rototiller to bust up the ground, after it has been treated with roundup to kill the weeds. My neighbor lets me use his 4 wheeler with spray tank for the weed killer application. I go over the ground at least four times, maybe a day or two apart. This allows it to dry and break up better. Then I measure out a grid, planting landscape flags every 10 feet all around the perimeter. I then use orange pavement marking paint to get the basic outline of the lanes from my plan. Next I roll the track with my mower pulling the roller. After that I lay down the black 4" flexible drain hose to make the lanes. I use landscape pins every ten feet to keep them in the ground. I also take the rocks we pick up after roto-tilling, and put them inside the ends of the hose, to help keep them from curling or getting moved too much from truck impacts. This year I took an old swing set and made a driver's stand out of it. Very easy, and cheap. I try and add something new each year. This year the design allowed use to race a very technical center section, and by moving just two pieces of lane pipe, we could convert it to a fast oval, with a chicane in one end. Our first attempt at track building won us some prizes from RC Car magazine, and my sons got their picture in Skinny's column.