Algoma Hardwoods STC 43 dimensions Thickness, Maximum size, Stiles Edge bands, Top & bottom rails

SR Acoustical & Acoustical FD 1⁄3 Hour Door

(Neutral or Positive Pressure)

See text below for Stile and Rail dimensions

Special sound dampening core with multi-ply skin

Hardwood face veneer

and medium density overlays

STC 40/STC 45

STC 43 with 1/3 Hour Label

STC 39 with Lite Opening

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 STC- 54 rating is achieved when two STC-40 Acoustical doors are installed back-to- back 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.

	Product Features
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.

	1001 Perry Street • Algoma, Wisconsin 54201
8/10/08	920.487.5221 • 1.800.678.8910 • FAX 920.487.3636	Door 43
	www.algomahardwoods.com • sales@algomahardwoods.com