Figure 2-8.Floor framing plan.
span may need only one row of bridging, but a 16-foot
span needs two rows.
Dimensions need not be given between joists.
Such information is given along with the notes. For
example, 2'' x 8'' joists @ 2 ft - 0 in. OC indicates that
the joists are to be spaced at intervals of 2 ft 0 in. on
center (OC). Lengths may not be indicated in framing
plans; the overall building dimensions and the
dimensions for each bay or distances between columns
or posts provide such data. Notes also identify floor
openings, bridging, girts, or plates.
The ROOF FRAMING PLANS show the
construction of the railers used to span the building
and support the roof. The size, the spacing, the roof
slope, and all of the details are also shown in the plan.
The roof framing plan is drawn in the same manner as
the floor framing plan; rafters are shown in the same
manner as joists. Figure 2-9 is an example of a roof
framing plan for a wood-framed roof. Roof framing
plans in the construction world today are very
technical and highly engineered (wind resistance,
load-bearing capacity, etc.), and in most stick frame
construction, pre-fab yards or truss manufacturers
(civilian sector) provides your roof system.
As necessary, SECTIONS are used in each of the
main divisions of construction drawings to show the
types of construction required, the types of materials
used, their locations, and the method of assembling the
building parts. Although they may be used in each of