The bottom ends of the cross bridging are not nailed until the subfloor or finish floor is laid and nailed to the
17.
joists so the joists will adjust themselves to their final position (para 1-33).
After having established the baseline, it is usually advisable with an irregularly shaped building, to lay out
18.
first a large rectangle which will comprise the entire building or the greater part of it (para 1-39).
If the height of batter boards is more than three feet above the ground, they should be braced (para 1-40c).
19.
Lines between batter boards can be made approximately level by attaching a line level at the midpoint of the
20.
line and making necessary adjustments (para 1-41e).
1A-2
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