On this episode of The Build Show, Zack explains Foundation height is a crucial aspect of any renovation project, and being too high can cause more issues than being too low. Avoid headaches by planning ahead and ensuring accurate layouts. Consider adding layers of plywood or sleepers to adjust the height if needed, but aim to be as close to the correct height as possible to avoid costly change orders. Utilize tools like lasers and reference marks to accurately measure and ensure the foundation is at the correct elevation. By taking these steps, you can ensure a smooth renovation process and a successful outcome. Plan ahead, measure accurately, and avoid foundation height headaches in your next renovation project.