A
airway
Space made between roof boards and insulation in order for air to move.
baseboard
Board positioned around the bottom circumference of a room as a finish between the floor and the plaster.
B
bridging
Small pieces of wood placed in an X-pattern between the floor joists to prevent them from twisting and squeaking.
C
corner braces
Diagonal braces at the corners of framed walls to provide extra strength.
crown
An upward bow, curve, or rise along a board length. Deck boards are set on end with the crown up. Eventually, the crown will sag and straighten the board.
crown molding
Molding used to cover any interior angle.
E
Eave
Lower part of a roof which projects over the wall.
F
face nail
Driving a nail perpendicularly through the width side board.
fascia
The flat front board which caps the rafter tail ends and fly rafter edges.
fishplate
A piece of wood that fastens the ends to two members together at a butt joint.
floor joists
The main subfloor framing members which supports the floor span. Typically, joists are made out of I-beams or 2x8 (or larger) lumber.
fly rafters
The end rafters forming the outside edge of the roof overhang.
G
girder
Large beam of wood or steel which acts as the principle support for loads along its span.
H
header
Beam which is perpendicular to wall suds above doors, windows or other openings. It carries the weight of structural loads.
J
joist
Parallel framing members installed horizontally to carry floor and ceiling loads
M
miter
45-degree cut. Unlike a compound miter cut, the saw blade remains at 0 degrees.
P
plumb
A vertical element that is perfectly perpendicular to a level surface.
pitch
The angle of a roof slope, measured as "X" inches per 12" (x/12).
R
rafters
S
siding
soffit
stud
2x4 or 2x6 vertical framing member used to assemble walls.
subfloor
Boards or plywood mounted over joists on which the finish floor is laid.