Been following Jesse on the Pure Living for Life YouTube channel (530 videos now) as he built his timber framed home with no prior experience. He just uploaded a new video that goes through his experience as he starts designing his first cabinets. I am sure there is plenty to criticize, but he is pretty thorough with the basic design decisions you must go through before you start cabinet construction. Very heavy on SketchUp. For a YouTuber, he puts together a pretty good video. Personally I had a quick sketch I needed to do for an LED sign permit last week so I tried SketchUp to no avail, I couldn't figure how to make a line a given dimension. So I downloaded the 4 gig AutoCad LT 30 day free trial. It had been ten years, but it fell into place quickly.