Japanese Timberframe Part I Stones and Sills

We are excited to share this new project, which is an extension of our house using Japanese style joinery. The frame is 12x22 with a 6’ cantilevered porch/balcony. Granite boulders were purchased from a Lexington KY landscaping supplier. The base frame has 6 stones, with 12 or 8 foot spans between them depending on direction. This sill timber matrix has 5x5 posts of virginia pine, and 5x9 sill beams of white pine. All wood has been dried about 2 years now. The site has a drop of about 6 feet overall. Pat