LESSON 2
SUPERSTRUCTURES - FRAMING
CREDIT HOURS ....................................................2
TEXT ASSIGNMENT.............................................Attached memorandum. Review lesson 1.
MATERIALS REQUIRED .....................................None.
LESSON OBJECTIVES
Upon completion of this lesson you should be
plumbing and bracing, doors, windows, and other
able to accomplish the following in the indicated
details.
topic areas:
3. Roofs. Determine the correct size and
1. Nomenclature and function. Name all the
length of lumber to use for the different members of a
members of the superstructure of a Theater of
roof truss, and the proper method of construction.
Operations type framed building, and state its
4. Light TO type framing.
Plan and
function.
supervise construction, when appropriate using the
2. Walls and partitions.
Supervise the
light theater-of-operations type framing.
construction of walls and partitions to include
ATTACHED MEMORANDUM
first floor is roughly covered to give a surface upon
2-1.
WALLS AND PARTITIONS
which to work. The corner posts are set up plumbed,
Walls and partitions are structural elements
and temporarily braced. The corner posts may be
composed of vertical members called studs, and are
made up of boards in several different ways (fig. 2-
usually closely spaced. They are arranged in a row
1).
with their lower ends bearing on a long horizontal
member, called a bottom plate or sole plate, and with
(1) A corner post may consist of a 4x6
their tops capped with another plate, called a top
with a 2x4 nailed on the broad side, flush with one
plate. Double top plates are usually used, especially
edge (1, fig. 2-1). This type of corner is primarily for
in bearing walls and bearing partitions. The bearing
a 4-inch wall. Where walls are thicker, heavier
strength of stud walls is determined by the strength of
timber is used.
the studs.
(2) A 4x4 may be used with 2x4's
a. Corner posts. The studs used at the
nailed to two of the adjoining sides (2, fig. 2-1).
corners of fame structures are usually built up from
(3) Two 2x4's may be nailed together
two or more ordinary studs or other dimension stock
with blocks between and another 2x4 nailed flush
to provide strength and additional nailing surfaces.
with one edge (3, fig. 2-1).
After the sill and first-floor joists are in place, the
2-1
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