Design Flexibility - The Permanent Wood Foundation System is adaptable to all kinds of light frame structures ------ single story, multiple story, manufactured buildings, full basements, walkout basements, split entry bi-levels, tri-levels, crawls, and slab-on-grade type foundations. They easily solve difficult problem site conditions and high water tables such as spring-time mud making it difficult to get heavy equipment and concrete near the building site, and delaying construction plans. The Permanent Wood Foundation can be built in any kind of weather conditions. Freezing weather does not limit construction time.