Foundations & Trailers

Foundations and Trailers Explained Simply

Everything in a tiny house rests on what lies beneath it. A trailer must carry the load, resist twisting on the road and keep moisture away from the floor. A fixed foundation must suit the soil, the climate and the weight above it. Choosing between a trailer, concrete piers, a slab or another system affects cost, mobility, insurance questions and what inspectors expect to see. Mistakes at this level are hard and expensive to correct once walls are up.

The guides in this topic explain how each base works, what to look for when comparing trailers, and how to think about leveling, anchoring and drainage. You will find plain explanations of terms you meet when talking to suppliers and builders. Because weight limits, frost depth and engineering requirements vary by location, you should confirm details with local officials and have a licensed professional design or approve any foundation.