Laserfiche WebLink
M. RODF SUPPORT MATERIAL--LOWVE1~T10NAL OR TEMPORAP,Y AWD SUPPLE(+~tJTAL <br />~: Dimensions of <br />diameter must Post--The len <br />be at least 1 gth of post shall be as required and the <br />inch fnr each 15 inches in length but <br /> not less than 4 inches--Solit posts shall have a cross-sectional area <br /> equal to that reguired for round posts of equivalent length. Smaller <br /> posts may be used provided they are set in clusters to provide equiv- <br /> alent suooort. <br />Type of Post--Round or split of solid straight grain wood with the ends <br />sawed square and free from defects which would affect their strength. <br />*Cap blocks, size, and shape--Cap Blocks and footers shall have flat <br />ralleied sides and be not less than 2" X 4" X 12" in si <br />Insert !•tinimum <br />Wedges, size and shape--1/0" x 3; x 10" t4inimum <br />• <br />*Crossbars, type and size--Crossbars shall be of straight grain solid <br />wood and thev shall be not less than 3-inches thick by 8-inches wide of <br />varying length. <br />*Planks, size--A minimum of 1-inch thick by 8-inches wide of varying <br />len th. <br />Cribbing blocks, size and shape--Cribbing blocks shall have flat para- <br />lleled sides and be not less than 30-inches in length. <br />*Note: Where wood material is used between roof bolt bearing plates <br />and the roof for additional bearing surface, the use shall be limited <br />to short life openings (not to exceed 3 years) unless treated. <br />3 <br /> <br />