Why don't your plans include the foundation?

There are too many options in foundation types.

There are so many different ways to handle foundations that it is difficult to include a foundation drawing for all the frames on the site.  We have completed many foundation details, you can find them at https://timberframehq.com/construction-details/masonryconcrete-to-timber/.  You should be able to find one that works for you there. 

Let us know if you have any questions.