Figure 2-14.Floor framing plan.
The unbroken, double-line symbol is used to indicate
joists, which are drawn in the positions they will
occupy in the completed building. Double framing
around openings and beneath bathroom fixtures is
shown where used.
Bridging is shown by a
double-line symbol that runs perpendicular to the
joists. The number of rows of cross bridging is
controlled by the span of the joists; they should not be
placed more than 7 or 8 feet apart. A 14-foot span
needs only one row of bridging, but a 16-foot span
needs two rows.
Notes are used to identify floor openings,
bridging, and girts or plates. Nominal sizes are used
in specifying lumber. Dimensions need not be given
between joists. Such information is given along with
For example, 1´´ x 6´´ joists @ 2´-0´´ cc
indicates that the joists are to be spaced at intervals of
2 feet 0 inches from center to center. Lengths might
not be indicated in framing plans. If you find this to
be the case, the overall building dimensions and the
dimensions for each bay or distances between
columns or posts provide such information.
ROOF PLANS. Framing plans for roofs are
drawn in the same manner as floor framing plans. A
Builder should visualize the plan as looking down on
the roof before any of the roofing material (sheathing)
has been added. Rafters are shown in the same
reamer as joists.
Shop drawings are sketches, schedules, diagrams,
and other information prepared by the contractor