I've looked at this post three times now and I'm still not sure how to answer your question. I'm guessing your asking how much stock to have on hand when you begin cutting off pieces to assemble into a cutting board. So, yes, you need to list the thickness of each piece, how many pieces you need, and the material loss from the blade kerf. I always add 10% for miscalculations, mistakes, bad material, or errors in judgement. I think the worst thing in woodworking is not having enough stock for a project and having to fudge or make do with an inferior piece when you are cutting parts for a project. Better to have some left over from a project. Wood has an EXTREMELY long shelf life, so you'll find a use for it later on. On a recent piece, I ended up short due to some bad wood and a couple of measuring mistakes and had to go back for more stock. I recently used some red oak from the wood rack as secondary wood in a maple piece. I once made a cherry table and used maple as the secondary wood.
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"Sawdust is Man Glitter"
Last edited by Jim Frye; 10-15-2017 at 10:36 PM.
Reason: added blather