Algoma Hardwoods STC 45, STC 39, STC 40, STC 43 User Manual

1001 Perry Street • Algoma, Wisconsin 54201

920.487.5221 • 1.800.678.8910 • FAX [phone]
www.algomahardwoods.com • sales

@algomahardwoods.com

Door 43

8/10/08

Hardwood
face veneer
and medium density
overlays

Special sound dampening
core with multi-ply skin

See text below
for Stile and Rail
dimensions

Algoma’s Acoustical doors were tested
as operating units in a complete system
with hollow metal framing back-filled
with mortar, gasketing, drop seal and
threshold, where applicable — the
same as supplied to the jobsite — thus
ensuring that the specified STC ratings
are achieved.

Sound Transmission Class (STC)
40 Acoustical doors should be used
wherever the degree of sound
insulation desired is higher than an
ordinary solid core door can provide.

If a still higher degree of sound
reduction is required, such as in
hospitals, doctors’ offices or conference
rooms, the STC 45 Acoustical door may
be specified.STC 43 Acoustical doors
are available for openings which require
both sound control and 1/3-hour fire
ratings.

When job requirements include doors
with glass openings, STC 39 Acoustical
doors are available, non-labeled.

And for communicating doors, a STC­54 rating is achieved when two STC-40
Acoustical doors are installed back-to­back in the same opening.

Testing was conducted by Riverbank
Acoustical Laboratories in accordance
with ASTM E90-90 and E413-87.

Algoma uses only face veneers
at least .020

"

(0.5mm) thick at

12% moisture content.

Thickness 13⁄4" (44mm)
Maximum size Non-labeled singles up to 4'0" x 10'0" (1220 x 3050mm) and pairs up to 8'0" x 10'0". In FD 1⁄3 hour, 4'0" x 8'0" (1220 x

2440mm) singles and 8'0" x 8'0" in STC-28 and STC-43. STC ratings not verifiable in pairs. STC-43 available in 1/3 hour
Category B.

Stiles (Edge bands) 47⁄8" (124mm) prior to factory trimming, veneer banded.
Special edge treatments Polymer edges for better impact resistance available.
Top & bottom rails 47⁄8" (124mm) prior to factory trimming. Structural composite lumber.
Core Special core construction with acoustical dampening materials.
Hardware Reinforcement None required.
Faces All foreign and domestic species and medium density overlay. Face veneers are a minimum of .020" (0.5mm) thick at 12%

moisture content. All faces to be per WDMA I.S.1-A face grades unless otherwise specified.

Adhesives Doors constructed using water-resistant adhesives (Type 2).
Veneer matching Pairs or matching transoms non-labeled. Note: Pairs and door/transom units have not been tested and may not

maintain STC ratings.

Details STC 39 doors with acoustical lites not to exceed 400 sq. in. (0.258m2) visible glass with an acoustical lite kit, gasketing

and double-glazed glass. Factory glazing required. Applied molding not available. Lites not allowed in fire rated STC-43.

Machining Available with hinge and lock machining as well as other hardware. Factory machined for drop seal.
Finishing Available in finishes with performance characteristics equivalent to WDMA System TR-6, standard or custom

colors. Also available primed, sealed, or sealed top and bottom edges only. Opaque finish (OP-6) on medium density overlay
only.

Warranty For interior, full warranty for life of original installation.
Standards met or exceeded WDMA I.S.1-A Series, ARCHITECTURAL WOOD FLUSH DOORS. Architectural Woodwork Quality Standards Section 1300,

Architectural Flush Doors and Section 1500, Factory Finish. Tested by Riverbanks Acoustical Laboratories in accordance with
ASTM E90-90 and E413-87 as operating units rather than “sealed in place.”STC ratings are verifiable only on single doors.

Special services Gasketing and drop seal are supplied with doors. Threshold supplied with STC 45, STC 43 and STC 39 doors.
Positive Pressure Category B: Singles and pairs require a category G edge seal applied to the frame. Pairs also require a category G edge seal

applied to one of the meeting edges.

Product Features

SR Acoustical & Acoustical FD 1⁄3 Hour Door

(Neutral or Positive Pressure)

STC 40/STC 45

STC 43 with 1/3 Hour Label

STC 39 with Lite Opening

1001 Perry Street • Algoma, Wisconsin 54201

920.487.5221 • 1.800.678.8910 • FAX [phone]
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) 47⁄8" (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 41⁄2" 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 33⁄4"

(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 1⁄3Hour 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)