Doors Part 1

Question 1

door swings are determined from standing

Answer 1

outside

Question 2

doors are classified by

Answer 2

function, operation, material

Question 3

door type:

single, smooth surface both sides

Answer 3

flush

Question 4

most common metal door

Answer 4

steel w painted finish

Question 5

hollow metal door face

Answer 5

cold-rolled steel

18/14 gage typ.

Question 6

hollow metal door core

Answer 6

honeycomb craft paper,
steel ribs,
hardboard.
*mineral wool provides sound deadening, if req.

Question 7

hollow metal door edges

Answer 7

steel channels,

reinforced @ hardware.

Question 8

hollow metal door widths,

and standard thickness

Answer 8

2’ to 4’ every 4”

1-3/4”

Question 9

steel door frames used for

Answer 9

steel or wood doors

Question 10

steel door frames material:

Answer 10

bent sheet steel

12,14,16 gage

Question 11

steel frames req’d excusively, over this fire rating

Answer 11

over 20 min

Question 12

steel frames styles:

one-piece, welded

Answer 12

set in place before partition created.

Question 13

steel frames styles:

knock-down (KD):

Answer 13

2 jambs + head shipped as separate pieces.

Question 14

steel frames styles:

slip-on

Answer 14

not available w welded corners.

*avoid if appearance of joint is objectionable.

Question 15

aluminum frames used at these doors

Answer 15

aluminum and wood doors.

Question 16

aluminum frames are extruded so

Answer 16

thinner face dimensions,

and more elaborate shapes possible

Question 17

aluminum frame finish

Answer 17

anodized or factory coated w baked acrylic.

Question 18

most common residential/commercial

Answer 18

wood doors and frames

Question 19

wood door face type:

flush

Answer 19

thin flat veneer,

laminated to various cores.

Question 20

wood door face type:

panel

Answer 20

solid vertical stiles and horizontal rails,

serve as frame for flat or raised panels.

Question 21

wood hollow core door:

door construction

Answer 21

1 or 3 plies of veneer each side,

cellular cardboard interior.

Question 22

wood hollow core door:

use

Answer 22

interior, light use, low cost.

no fire-resistance.

Question 23

wood solid core door:

core material

Answer 23

particleboard.
stave core,
mineral core,

Question 24

wood solid core door:

stave core material

Answer 24

solid blocks of wood.

Question 25

wood solid core door:

mineral core use

Answer 25

fire-rated (45min, 1hr, 1.5hrs)

Question 26

wood solid core door:

use

Answer 26

fire-resistance (20mins–1.5hrs)
acoustic barrier,
security,
superior durability.

Question 27

wood solid core door:

veneer matching style

Answer 27

typ bookmatched

Question 28

wood solid core door:

hardboard veneer used

Answer 28

for painting,

or plastic laminate

Question 29

wood door sizing:

Answer 29

widths 2’ to 3’-4”
(every 4”)

heights 6’8”, 7’0”.
thickness: 1-3/4”,
2-1/4” for large, exterior, and acoustical doors.

Question 30

wood frame fire door ratings

Answer 30

20, 30, 45 min