For My Next Trick

My mom's fence is falling apart. It has been heaving - only one one side for about 5 years - roughly a inch a year. Now it is to the point where some boards are rotting and it needs to be replaced. I have never built a fence before but how hard can it be. I have offered my mom to build it for her. We have driven around the neighbourhood and looked at all kinds of different fence styles. She has had no opinion. I have told her if you have no opinion, you can't complain. I know in my head what I want the fence to look like so now we will see if my vision can become a reality.