Pier Spacing and Placement

Pier Spacing and Placement A. For proper pier spacing and placement for all new Factory-Built homes, the piers shall be located in accordance with the Factory-Built home manufacturer’s installation instructions. B. If the Factory-Built home manufacturer installation instructions are not available for a used home, piers for single section homes are to be placed under each I-beam not to exceed 8 ft. on center spacing for homes that are 14 ft. wide or less. For single section homes that exceed 14 ft in width, piers shall not exceed 6 ft. on center spacings for the minimum soil bearing capacity of 2,000 psf. If the soil bearing capacity is determined to be less than 2000 psf, the support piers shall not exceed 4 ft on center spacings. Note: End piers shall be placed no more than two (2) feet and no less than one (1) foot from the end of each I-beam. C. The pier spacing under each longitudinal I-beam for all used Factory-Built homes (single wide or multi-section) having a Wind Zone II classifications shall be no greater than 6 ft. on center. D. Piers for all used multi-section homes are to be placed under each I-beam not to exceed 6 ft. on center spacing. For used multi-section homes, piers are to be placed under the center marriage line no less than one (1) foot from each end, under ridge beam support columns, and under both sides of an opening at the marriage line that is greater than 12 ft in width. All marriage wall support piers shall be placed perpendicular to the mate line of the two sections of the home.