Step #3. Spread sharp (plasterers) sand over the area to a depth of 2-4 inches. Again get it reasonably level but don't waste time collapsible backdrop styling board on it; you will see why in the next two steps. The type of sand used here is important don't use ordinary sand, it just wont do the job. Give the dimensions of your lawn to your builders merchant or sand supplier, tell him the required depth and he will deliver the correct amount.