(A) Pier foundations shall be installed directly under the main frame or chassis of the mobile home. The piers shall not be further apart than ten feet on centers, and the main frame, front or back, shall not extend further than two feet beyond the center line of the end of the piers.
(B) All grass and organic material shall be removed and the pier foundation placed on stable soil. The pier foundation shall be a 16-inch by 16-inch by 4-inch solid concrete pad, precast or poured in place, or the equivalent.
(C) Piers must be constructed of regular eight-inch by eight-inch by 16-inch concrete blocks, open cells, solid, or the equivalent (with open cells vertical), placed above the foundation. A two-inch by eight-inch by 16-inch pressure-treated wood plate, or the equivalent, shall be placed on top of the pier with shims fitted and driven tight from both sides of the I-Beam, between the wood plate and the main frame. Shims shall not occupy more than one inch of vertical space. Single tiered block piers shall be installed perpendicular to the main I-Beam. (See Figure I)
(D) All piers over 40 inches in height shall be double-tiered with blocks interlocked and capped with a four-inch by 16-inch by 16-inch solid concrete block, or the equivalent, and cushioned with wood shims or a pressure-treated plate. (See Figures II and III)
(E) All corner piers over three blocks high shall be double-tiered, with blocks interlocked, and capped with a four-inch by 16-inch by 16-inch solid concrete block, or equivalent, and cushioned with wood shims or a pressure-treated plate.
[See hard copy of the Code for Figures I, II, III, and IV.]