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72 <br /> or <br /> supports are <br /> -within-used- in the construction of chimneys or fire- <br /> places, they hall e removed two creeks�after masonry <br /> is laid. <br /> Para. 9:- Sizing and spacing of girders shall be in accord- <br /> ance with 'tables, , 1I, III, and Iv appended. <br /> Para. 100 wood floor joists. 1. where joists frame into <br /> side of wood girders, metal hangers or a bearing strip spiked <br /> to the- girder must be used. 2. Floor joists framed into mas- <br /> onry walls shall have at least a four inch bearing and a three <br /> inch fire bevel cut. 3. Floor joists shall be doubled under all <br /> partitions running parallel to the floor joists.' 4. All headers <br /> over four feet long shall be doubled. 5. Floor joists shall be <br /> cross bridged when span exceeds eight' feet. At lea t one b <br /> three inch or stronger stock shall be used. <br /> Para. 11. wood Rafters. 1. Truss construction may be <br /> used provided it is of a strength comparable with 'table Iv <br /> and is approved by the Building Inspector. 2. Collar ties not <br /> r <br /> less than -x 4 or 1 x 6 inches shall be used f or all sloping <br /> t <br /> rafters. <br /> Para. 12. Exterior wail studs. 1. Studs shall not be less <br /> { than two inches by four inches placed not more than sixteen <br /> inches on center. 3. Pleaders over all openings shall be <br /> doubled and shall be at least-the following: (a) up to Y -2 <br /> 2 <br /> x 4's b} to 5121-� 2 x G's on edge. (c) 51/2' to 7'-�-2 2 x S's <br /> on edge. (d) over 7'--2 x10's Gn edge. 3. In lieu of headers, <br /> approved- trusses may be 'used. 4. Studs in exterior frame <br /> walls may run from sill to roof line provided they do not <br />{ exceed twenty feet in length. 5. Studs shall not be spliced. <br /> 6. Floor j oists on exterior galls shall bear on at least a one <br /> inch by six inch ribbon let into the face of the studding. <br />� <br /> Joists bearing on such ribbons shall be securer nailed to the <br /> studs. <br /> Pura. 13. Plates: All top plates shall be not less than <br /> two inches by four inches doubled, which shall lap at all <br /> corners and Joints -or butts. <br /> Para. 14. Interior Partitions. 1. All bearing partitions <br /> shall be not less than two inches by four inches set the f our <br /> inch way, <br /> and not rndre than.sixteen inches on center. 2. All <br /> in bearing partitions shall have double headers <br /> openings g <br /> framed as required in exterior openings. 3. Top plates for <br /> bearing partitions shall be doubled. <br /> ar . 1 . Notching of Timbers: Notching of i gists to <br /> Para. � <br /> facilitate the installation of pipes and ducts may be permitted <br /> pp <br /> with the following installations: 1. Top and bottom edges <br /> rria be notched not to exceed one sixth of the .joist depth. <br /> 1 <br /> •S <br /> i <br /> r y� <br />