(1) Pilasters shall be provided under beams that frame into unit masonry foundation walls 140 mm or less in thickness.
(2) Pilasters required in Sentence (1) shall be not less than 90 mm by 290 mm and shall be bonded or tied into the wall.
(3) The top 200 mm of pilasters required in Sentence (1) shall be solid masonry with the cells of hollow or semi-solid units filled with mortar, grout or concrete.