Decided last summer to buy and set up a greenhouse, the idea is to grow stuff that normally has a hard time growing up here, such as watermelon, honeydew/muskmelon and certain species of peppers and tomatoes. First order of business was to clear out some land and get it filled in.
Found a local to bring in some fill and spread it, he brought in over 20 dump truck loads of a sandy/loamy fill and spread it out was his excavator. Took a couple days for him to get it done, just in time for the first snow fall.
Initially I was going to build my greenhouse from scratch but my wife convinced me to buy one instead. Buying one was convenient and easy but I'm not sold on the cover, seems a bit too opaque to me. Still one day later and I had it assembled and covered, it's a 20' X 10' greenhouse from amazon.
Now up here the common problem with structures like these is that snow load will make them collapse in the middle. I decided to fix the by cutting some small trees and installing them as supports in the middle, I put in 3 of them