Easy to do. We put in 30 of these in one weekend. Call WamBam to borrow their pneumatic post whomper instead of using a manual one. Use a level to try and get them upright. (We got better with practice). A hand winch tied to obliging trees can straighten the really crooked ones. WamBam's guide tells you how to deal with slightly crooked ones so nobody can tell you weren't perfect. Our fence looks great and we aren't all that handy with tools. WamBam makes these to go on concrete too.