Whew, I just finished clearing out the area where I plan on putting the greenhouse. I have a big backyard, but there are lots of trees, limiting my options. I settled on the narrow side yard, which gets the most sun. The problem was their was a shed, garbage cans, bushes( thorny ones), and useless junk that didn't fit in the garage already there. It took me all day to clear it, but I found some really useful stuff. I found bricks and lot of them. Also the garbage cans were filled with wood planks not firewood as I'd thought originally. After everything was gone I leveled the dirt, covered it with black mesh, then poured down a layer of sand. I then laid down all the bricks and poured gravel in the cracks. I'm pooped