I made a pad two years ago out of what they call road pack. My pad is about 20X12 and only cost a couple hundred bucks. It's been used for drive ways around here since forever and has worked very well. I didn't bother removing sod or using Weed Ender, but you sure can if you don't mind all the extra work. I spot spray any vegetation that manages to penetrate it (with Roundup). Very little makes it through several inches of road pack. I would love to install a cover, but I'll have to wait till I win the lottery or something for that!