Page 157 - Masonry and Concrete
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Masonry Construction Techniques
            156  CHAPTER FIVE





                                                                            MARK STRING LINE
                                                                            SETTINGS FOR
                                                                            EACH COURSE
                                                  SCRAP LUMBER







                                                                                 2 2 /3"


                               2 1 /4"
                                                                                 2 2 /3"  8"
                               3 /8"


                                                                                  2 2 /3"



                              FIGURE 5-17
                             A story pole simplifies vertical coursing measurements.


                            line blocks should hold the string slightly away from the face of the
                            wall so that the following units will not touch it or push it out of align-
                            ment. The masonry in between the leads can now be laid to the line to
                                                       keep the wall straight and the brick course
                                                       level. The string line should always be
                                                       pulled tight enough to prevent sagging and
                                                       should occasionally be checked with a
                                                       line level. A mason’s level is used to make
                                                       sure the face of the wall is plumb. The line
                                                       blocks and string are moved up the corners
                                                       of the leads as each course of the wall is
                                                       filled in, and the leads are continually
                                                       built up several courses above the middle
                                                       of the wall.
                                                          Commercial story poles are made of steel
             FIGURE 5-18                               with adjustable coursing scales attached and
            Racking back a partially completed masonry wall.  are designed to eliminate the need for build-



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