Hello everyone!!! This is my first post. I was doing a search on the web and came across you guys. I've watched every single home improvement show on the tube, painted all the rooms in my new apartment, and now would like to try to build some things. I went to a lumber yard north of me and couldn't believe all the different kinds of wood they had. Mother Nature does wonders!!! My question is, the wood they sell is in the "rough" as they call it. Can I just sand it down smooth or do I need to plane it as they said. (The guy said he would plane it and cut it for no charge.) I want to start easy and make some shelves. TIA