Quiet spaces start with better doors

When sound is controlled, spaces become more functional, more comfortable, and more enjoyable

Acoustic door systems are essential to creating quieter, more functional spaces.

Each opening is designed to control sound, support privacy, and integrate seamlessly into the built environment. Materials and construction are optimized for performance, durability, and long-term reliability.

Our solutions deliver consistent acoustic control across a wide range of applications.

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Specifications STC

STC Rating	Door Thickness	Fire Rating	Glass Size (sq in)	Glass Type	Pair Option	Max Size	TESTING HARDWARE
50	2-1/4'' (57 mm)	Non-Rated	LB7-STC 1296 sq.in. (0.836 sq.m.)	3/4'' - 19mm sound glass	Pair	8'-0'' x 10'-0'' 2438mm x 3048mm	Tested using double row S88BL Siliconseal™ Gasket, perimeter gasketing 312R, 434ARL drop seal, 2005AT threshold and 3 heavy duty hinges 5'' x 5''
45	1-3/4'' (44 mm)	45	Metal Kit only 216 sq.in. Max (0.139 sq.m.)	7/8''-22.22mm Pyrostop	Single	3'-0'' x 7'-0'' 914mm x 2134mm	Tested using S773, SA4 & ACP 112 gasket, PDB411AE drop seal, acoustic corner pad ACP112 and 3 heavy duty hinges
45	1-3/4'' (44 mm)	20	Metal Kit 216 sq.in. Max (0.139 sq.m.)	7/8''-22.22mm Pyrostop	Single	4'-0" x 8'-0" 1219mm x 2438mm	Tested using S773, SA4 & ACP 112 gasket, PDB411AE drop seal, acoustic corner pad ACP112 and 3 heavy duty hinges
45	1-3/4'' (44 mm)	Non-Rated	N/A	N/A	Pair	8'-0'' x 10'-0'' 2438mm x 3048mm	Tested using Zero International Hardware. 1 row of Weathership No.475 on door stops, 1 rabetted threshold no.564A and 1 row of spring no. 119WB on head and jambs, and on bottom rail of the door
44	1-3/4'' (44 mm)	Non-Rated	N/A	N/A	Pair	8'-0'' x 10'-0'' 2438mm x 3048mm	Tested using double S88BL Siliconseal™ gasket, 434ARL drop seal, 2005AT Threshold and 3 heavy duty hinges
43	1-3/4'' (44 mm)	Non-Rated	LB7-STC 667 sq.in. (0.43 sq.m.)	3/4'' - 19mm sound glass	Pair	8'-0'' x 10'-0'' 2438mm x 3048mm	Tested using double S88BL Siliconseal™ gasket, 434ARL drop seal, 2005AT Threshold and 3 heavy duty hinges
37	1-3/4'' (44 mm)	90	Metal Kit 484 sq.in. Max (0.312 sq.m.)	5/16''- 8mm Ceramic Lam.	Pair	8'-0'' x 9'-0'' 2438mm x 2743mm	Tested using NCG 5075B gasket, NCP 5060B gasket, NCP 896S threshold and 3 standard hinges
37	1-3/4'' (44 mm)	Non-Rated	LB7-STC 667 sq.in. (0.43 sq.m.)	1/4''- 6mm tempered	Pair	8'-0'' x 10'-0'' 2438mm x 3048mm	Tested using double S88BL Siliconseal™ gasket, 434ARL drop seal, 2005AT Threshold and 3 heavy duty hinges
35	1-3/4'' (44 mm)	20	Metal Kit 216 sq.in. Max (0.139 sq.m.)	5/16''- 8mm Ceramic Lam.	Single	3'-0'' x 9'-0'' ou 4'-0'' x 8'-0'' 914mm x 2743mm ou 1219mm x 2438mm	Tested using S773, SA4 & ACP 112 gasket, PDB411AE drop seal, acoustic corner pad ACP112 and 3 heavy duty hinges
35	1-3/4'' (44 mm)	Non-Rated	LB7-STC 1296 sq.in. (0.836 sq.m.)	1/4''- 6mm tempered	Pair	8'-0'' x 10'-0'' 2438mm x 3048mm	Tested using double S88BL Siliconseal™ gasket, 434ARL drop seal, 2005AT Threshold and 3 heavy duty hinges
31	1-3/4'' (44 mm)	20	LB7-STC 1296 sq.in. (0.836 sq.m.)	Fire lite NT 3/16''- 4.76mm	Pair	8'-0'' x 9'-0'' 2438mm x 2743mm	Tested using double S88BL Siliconseal™ gasket, 434ARL drop seal, 2005AT Threshold and 3 standard hinges
30	1-3/4'' (44 mm)	20	LB7-STC 1296 sq.in. (0.836 sq.m.)	Fire lite NT 3/16''- 4.76mm	Pair	8'-0'' x 9'-0'' 2438mm x 2743mm
27	1-3/4'' (44 mm)	20	LB7-STC 1296 sq.in. (0.836 sq.m.)	Fire lite NT 3/16''- 4.76mm	Pair	8'-0'' x 9'-0'' 2438mm x 2743mm	Tested using double S88BL Siliconseal™ gasket, 434ARL drop seal, 2005AT Threshold and 3 standard hinges