Hello! I am building a Pavilion in a Garden at the company where I work, using the Skylark 250. It will consist of four identical modules forming a cross shape. As a test prototype, I will construct only one module in the format below. My question is regarding the foundation. The soil here is clay-based, and I plan to use an isolated footing with dimensions of 60x60x60 cm to minimize the impact on the soil, with a space left for a solid wood beam measuring 15x20 cm, which will support the side parts of Module 1 of the pavilion. Would this be sufficient?
Thanks!