The foundation walls store up to the first floor. In most cases it’s inefficient to span the particular distance between walls so beams are usually used web the sides. Beams typically rest on notches your foundation walls and have additional posts that connect to additional footings in the very center of creating. On any second and higher floors, the wood frame walls, both interior and exterior, are being used to hold them up. In some cases beams are also used for upper level floors that span large openings or when alternatives here . heavy load requirements.