Pierce engages a registered structural engineer to design and certify the foundation plan for each home.  Soil conditions of the lot, drainage, topography etc are taken into account as the foundation is designed. Based on this technical data, the engineer determines the thickness of the concrete floor, width and depth of the concrete beams and how far apart they should be spaced, how large the post tension cables should be and where they should be placed.

The photo illustrates a foundation placement underway.  Per the engineers design, the beams have been excavated, the plumbing is in place and the post-tension steel cables have been installed.   A black poly vapor barrier has been installed to minimize moisture.  The site is ready for the builder and the city building inspector to review the foundation components to insure all items are installed correctly.