drywall
regular gypsum panels
Are widely used for single and multi layer application. applied to interior walls and ceilings.
for screw installation, ceiling screws are placed how far apart?
12"
when double nailing center of nail pairs are how far apart?
12"
for screw installation, wall screws are placed how far apart?
16"
plasterboard (or gypsum lath) is available in ____ widths and usually ____ long
16" and 24" Widths 48" long
take at least ____ number of measurements to accurately location outlet or fixture openings on the sheet
2
in double nail spacing each pair is how far apart?
2" to 2 1/2"
core board used for shafts, firewalls, and stairways are commonly ____ thick?
3/4" or 1"
what thickness is used as a face layer in repair and remodeling work?
3/8"
drywall sheets are most commonly used in ____ widths
4'
avoid side joins how within how many inches of the outside edge of doors and windows?
6"
on ceilings nail spacing is what?
7" between nails
on walls single nail spacing is what?
8" between nails
most commonly used drywall lengths are
8' and 12'
Drywall sheets are manufactured in
8', 9', 10', 12', 14', and 16' lengths
plasterboard (or gypsum lath) is used as
a plaster base, replacing wood or metal in new construction
dimpling drywall creates what?
a pocket which is filled with joint compound
sound deadening board is used for?
a sub-layer with other types of drywall, usually type X (often only 1/4" thick)
foil backed board is used as?
a vapor barrier on exterior walls
corner beads are used on what?
all exposed corners
tapered edge
are for effective joint concealment
vinyl-surfaced board is
available in a variety of colors, is attached with special drywall finish nails, and edges are left exposed without joint treatment
when installing drywall what is installed first
ceiling panels
single nail spacing should be what?
driven from the center outwards with 7" between nails on ceiling and 8" between nails on walls
water resistant or moisture resistant gypsum board is also referred to as
green board
when laying out drywall sheets one should try to minimize what?
joints / seams
pre-decorated drywall has
rounded or beveled edges
type X drywall has
special additives that make it fire resistant
water resistant or moisture resistant gypsum board has
special moisture-resistant core and paper cover that is chemically treated to repel moisture
backing board is as?
the base layer in multi layer systems
drywall sheets are cut using what?
utility knife and T-square
sheets may be installed how?
vertically or horizontally
ceiling panel installation is followed by what?
wall sheet installation
casing bead is used where?
where drywall sheets butt at wall intersections and match the thickness of the wall
what are commonly used thicknesses of gypsum panels used in single layer wall and ceiling application?
1/2 and 5/8"
when cutting drywall gaps of how many inches are acceptable at the top and bottom because they will be covered
1/2"
what thickness is used as a base layer in multi layer applications?
1/4"
for two layer drywall use what size corner bead?
1 1/4" x 1 1/4"
for 1/2" or 5/8" drywall use what size corner bead?
1" x 1 1/4"
for 3/8" or 1/2" drywall use what size corner bead?
1" x 1"
