I watched a lot of videos to learn, mostly from the HouseImprovements channel which specifically had a series on building a shed (https://www.youtube.com/channe

I watched a lot of videos to learn, mostly from the HouseImprovements channel which specifically had a series on building a shed (https://www.youtube.com/channel/UCpJ1vJPFqImom-NN2fkBS0A https://www.youtube.com/channel/UCpJ1vJPFqImom-NN2fkBS0A). That gives the basic idea. You can find plans online easily, but I did do my own design in the end (in SketchUp). Carpentry is very systematic; once you've learned the rules for framing walls/floors it's all straightforward from there.