Page 157 - Masonry and Concrete
P. 157
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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