Advantages of Gypsum Drywall
ANSWER
low install cost, quick & easy installation, fire resistance, sound control capability, easy avail-
ability, versatility, ease of finishing & decorating, ease of installation of doors/other openings
Gypsum Drywall Edges
ANSWER
Tapered: Most common; tapered on face side along the long dimension of the panel &
square edges at the end; allows for application of reinforcing tape & joint compound without
causing bulges at joints
Square: used where appearance is NOT a factor, for basic layers of 2-layer applications & for
veneer plaster work
Levels of Gypsum Drywall
ANSWER
1: plenums above ceilings & other areas not normally open to view (tape embedded in joint
compound w/ surface free of excess compound
2. water resistant backing board (all joints & angles have tape embedded in joint & one sep-
arate coat of compound
3. heavy or medium textured finishes/heavy-grade wallcovering ( 2 coats of compound)
4. Light textured or wallcoverings & where economy is concerned (3 layers)
5. all paints, severe lighting conditions (4 layers)
Slip Joint
ANSWER
prevent wall from being damaged if the structural floor deflects
1
,Studs are spaced how far apart?
ANSWER
residential: 16" O.C.
commercial: 24" O.C.
Plaster Construction
ANSWER
1. Scratch Coat
2. Brown Coat (level surface)
3. Finish Coat (Leveling & desired texture)
*Add Trim
Masonry Block Dimensions
ANSWER
8"x8"x16" (-3/8" for mortar joints)
Demountable Partitions
ANSWER
Consists of a system of individual components that can be quickly assembled, disassembled
& reused with nearly total salvageability
consists of floor runners, ceiling runners, stud sections with clips to hold panels, & prefin-
ished gyp. wallboard panels
uses aluminum for framing
2
,Definition: Hinges
ANSWER
Consist of 2 leaves with an odd number of knuckles on one leaf and an even number of
knuckles on the other
knuckles are attached with a pin
knuckle + pin = barrel (finished with tip)
Butt Hinge
ANSWER
MOST COMMON; has both leaves fully mortised into the frame and the edge of the door so
the hinge is flush with the surface of the frame and door
Types of Hinge Tips
ANSWER
-flat button (most common; typical)
-hospital
-oval head (typical)
-steeple
-flush
raised barrel hinge
ANSWER
used when there is not room for the barrel to extend past the door trim; OFFSET to allow
one leaf to be mortised into the frame (kind of has an L shape on each side)
swing clear hinges
3
, ANSWER
has a special shape that allows the door to swing 90 degrees or 95 degrees so the full open-
ing of the doorway is available
definition: latches & locksets
ANSWER
device to operate a door, hold in position & lock it
latchset
ANSWER
ONLY holds door in place; NO lock (i.e. restroom partitions)
lockset
ANSWER
special mechanism that allows the door to be locked with a KEY or THUMBTURN
cylindrical
ANSWER
most common; simple to install in holes drilled into door, relatively inexpensive, most com-
mon in residential (like doors in home bedroom)
mortise lockset
ANSWER
installed in rectangular area cut out of door; more SECURE than cylindrical and offers wider
variety of locking options
pre-assembled
ANSWER
4
ANSWER
low install cost, quick & easy installation, fire resistance, sound control capability, easy avail-
ability, versatility, ease of finishing & decorating, ease of installation of doors/other openings
Gypsum Drywall Edges
ANSWER
Tapered: Most common; tapered on face side along the long dimension of the panel &
square edges at the end; allows for application of reinforcing tape & joint compound without
causing bulges at joints
Square: used where appearance is NOT a factor, for basic layers of 2-layer applications & for
veneer plaster work
Levels of Gypsum Drywall
ANSWER
1: plenums above ceilings & other areas not normally open to view (tape embedded in joint
compound w/ surface free of excess compound
2. water resistant backing board (all joints & angles have tape embedded in joint & one sep-
arate coat of compound
3. heavy or medium textured finishes/heavy-grade wallcovering ( 2 coats of compound)
4. Light textured or wallcoverings & where economy is concerned (3 layers)
5. all paints, severe lighting conditions (4 layers)
Slip Joint
ANSWER
prevent wall from being damaged if the structural floor deflects
1
,Studs are spaced how far apart?
ANSWER
residential: 16" O.C.
commercial: 24" O.C.
Plaster Construction
ANSWER
1. Scratch Coat
2. Brown Coat (level surface)
3. Finish Coat (Leveling & desired texture)
*Add Trim
Masonry Block Dimensions
ANSWER
8"x8"x16" (-3/8" for mortar joints)
Demountable Partitions
ANSWER
Consists of a system of individual components that can be quickly assembled, disassembled
& reused with nearly total salvageability
consists of floor runners, ceiling runners, stud sections with clips to hold panels, & prefin-
ished gyp. wallboard panels
uses aluminum for framing
2
,Definition: Hinges
ANSWER
Consist of 2 leaves with an odd number of knuckles on one leaf and an even number of
knuckles on the other
knuckles are attached with a pin
knuckle + pin = barrel (finished with tip)
Butt Hinge
ANSWER
MOST COMMON; has both leaves fully mortised into the frame and the edge of the door so
the hinge is flush with the surface of the frame and door
Types of Hinge Tips
ANSWER
-flat button (most common; typical)
-hospital
-oval head (typical)
-steeple
-flush
raised barrel hinge
ANSWER
used when there is not room for the barrel to extend past the door trim; OFFSET to allow
one leaf to be mortised into the frame (kind of has an L shape on each side)
swing clear hinges
3
, ANSWER
has a special shape that allows the door to swing 90 degrees or 95 degrees so the full open-
ing of the doorway is available
definition: latches & locksets
ANSWER
device to operate a door, hold in position & lock it
latchset
ANSWER
ONLY holds door in place; NO lock (i.e. restroom partitions)
lockset
ANSWER
special mechanism that allows the door to be locked with a KEY or THUMBTURN
cylindrical
ANSWER
most common; simple to install in holes drilled into door, relatively inexpensive, most com-
mon in residential (like doors in home bedroom)
mortise lockset
ANSWER
installed in rectangular area cut out of door; more SECURE than cylindrical and offers wider
variety of locking options
pre-assembled
ANSWER
4
