I2 - Doors Flashcards
What are the rails on a panel door?
solid wood horizontal frame members
To improve security, what should be installed on an exterior door that swings outward?
non-removable pin (NRP) hinges
Which latch sets are used extensively for residential doors?
cylinder latch sets
To install a cylinder latch set, what size holes must be drilled in the door?
1” (25mm) in the edge and 2 1/8 “(54mm) in the face
If three hinges are used on a door, where is the center hinge commonly located?
centred between the top and bottom hinge
While installing a door directly on finished hardwood flooring, you discover that the top of a door has a larger gap at the head jamb on the latch side then on the hinge side. If the door jamb is plumb, what must be done to remedy the problem?
the latch side jamb must to be cut shorter and dropped
What is the result of placing shims in the location shown on the diagram below?
increase the clearance at the hinge side of the door
Why is there a clearance beneath interior doors?
To provide adequate air movement between rooms when the door is closed
What are the stiles on a panel door?
solid wood vertical frame members
According to the BCBC, to attach a hinge leaf to a wood door, what is the minimum length of screw that can be used?
25mm
What type of door is used as…
an exterior door
for sound reduction
for fire rating
in heavy use areas
or for increased security
Solid core
Which of the following is true in regards to door jambs used in rain screened wall applications?
need to be wider than conventional door jambs
What is the name of a door that is split in two horizontally and may have lites with muntins in the upper half?
Dutch door, Dutch French door
Which swing direction shown above is a Left Hand Reverse?
B
Which swing direction shown above is a Right Hand?
C
What is the purpose of a door closer?
So the door will close after each opening
Where is an “astragal” used?
between two doors in the same opening
What is the name of a door that has small glass panes fitted between side stiles and top and bottom rails?
French
Which type of door would be MOST suitable for a bathroom where floor area does not permit the use of a standard hinged door?
What is necessary for a door to be considered fire rated?
a fire rating label
What is the minimum width of a second bathroom door if the first one is 760mm in a single family dwelling?
610 mm
Why is door casing installed with a reveal?
so the casing does not need to be notched around hinges
What is the recommended clearance between the edge of a door and the jamb?
3/32”, 3/16”
How should an interior door with a slight bowing in the length be installed?
so that the door contacts the top and bottom of the jamb first
What does the “back set measurement” refer to?
distance from the edge of the door to the center line of the door handle
The framing at a door opening is twisted and out of square. What is used to ensure the door jamb is installed straight and square?
tapered shims installed from opposing sides of the jamb
Why is it important to shim the jamb behind each door hinge?
to prevent movement of the jamb
Why are hinges on a jamb installed 3 mm (1/8”) lower than on the door?
to provide clearance at the top of the door
What are the standard thicknesses for residential doors?
1 ¾” exterior, 1 3/8” interior
What are wood veneer, solid core and fire-rated doors often filled with?
Gypsum
What type of door is secured by a pin at the top and an adjustable fitting at the bottom?
bi-fold
Which type of door requires the installation of at least two separate top tracks?
bypassing
How do energy-efficient doors differ from other exterior doors?
They have weather stripping, insulated interior and thermal breaks
What is the difference between an astragal and a mullion?
a mullion is fixed to the door frame and an astragal is attached to the passive door
