background image

1001 Perry Street • Algoma, Wisconsin 54201
920.487.5221 • 1.800.678.8910 • FAX 920.487.3636
www.algomahardwoods.com • sales

@

algomahardwoods.com

Door 44

8/10/08

MAXIMUM OPENING SIZE

Singles: 

4'0" x 8'0" (1220 x 2440mm).

Pairs:

8'0" x 8'0" (2440 x 2440mm).

FACES

All domestic and imported wood species. 

STILES (VERTICAL EDGES)

4

7

8

" (124 mm) hardwood stiles veneer banded

to match face species.

MAXIMUM WOOD BEADED LITE

Not allowed.

MAXIMUM METAL VISION PANEL 

Not allowed.

HINGES*

Ball bearing steel, full mortise, half 

Note: Per NFPA 80 some specialty 

surface, or full surface. Minimum size 4

1

2

" x 

hinges allowed. Contact Algoma for 

.134" (114 x 3.4mm) .

information.

LOCKSETS*

Listed mortise locks, unit locks, and cylindrical
locks or hospital push-pull latches to 3

3

4

"

(95mm) backset. 

CLOSERS*

Listed surface mounted closures.

FIRE EXIT HARDWARE*

Mortise or rim type devices 

Door Bottoms: 

Doors are supplied with concealed type
automatic drop seal. 

Maximum trim: 

Doors should be ordered factory prefit for
height since the bottom is grooved for drop
seal.

Prefit: 

Standard undercut on STC 39, 43, and 45 will
receive a 

7

/

16

" undercut to accommodate the 

1

/

4

"

high threshhold. Undercut can be adjusted if
floor conditions warrant.

SR Acoustical & Acoustical FD 

1

3

Hour Door

UNDERWRITERS LABORATORIES, INC.
FD 1/3 HOUR FIRE DOOR APPROVAL (STC 28 and STC 43)

ACOUSTICAL DOOR ACCESSORIES

Type of

Sound Transmission

Transmission loss at various frequencies (Hertz)

Door weight*

installation

Class (STC)

125

250

500

1000

2000

4000

lbs/sq ft

kg/M

2

Single door (with lite opening)

39

26

31

38

41

40

44

6.5

31.7

Single door

40

24

38

40

43

40

41

6.4

31.3

Single door 20 minute label

43

24

35

42

44

45

50

7.1

34.7

Single door with threshold

45

26

39

42

44

48

51

6.4

31.3

Two STC 40 as communicating doors

54

36

47

50

55

57

59

6.4

31.3

* Door size and weight should be considered when determining hardware requirements.

The maximum benefit of acoustical doors is obtained from openings with uniform door/frame edge clearance, correct positioning of gasketing, and proper adjustment of the automatic bottom seal.

Sound Transmission Loss Ratings and Door Weight*

896S THRESHOLD

(Supplied with STC 39, STC 43 and STC 45 Doors-ADA Approved)

225N Bottom Seal

ACOUSTICAL DOOR 

GASKETING

5050B Self-Adhesive Gaskets

(Two Per Side)

Supplied With Door

Hinge Jamb

Strike Jamb

(Head Simialr)

5"

1/2"

1/4"

ACOUSTICAL LITE

STC 39 (No Fire Rating)

Glass Factory Installed

1"

1

3

4

"

1/4"

1/8"

7/8"

1-13/16"

ACOUSTICAL DOOR AUTOMATIC DOOR BOTTOM

(supplied with door)

Aluminum with neoprene insert 

3

/

4

" (19mm) maximum drop

S99-1000 Self-Adhesive Gaskets

(Head Similar)

(NGP)

(NGP)

Reviews: