ArtUSA® Noise Control Products, Inc. offers a wide selection of sound rated doors. STC (Sound Transmission Classification) ratings are available from STC 41 to STC 57. Along with the standard single swing 3' x 7' doors, we can manufacture various odd sized, double doors, swinging doors and tandem doors and doors with or without windows. Most acoustic doors have a standard metal finish, however many veneer options are available. Typical applications for sound rated doors include recording andmore broadcast studios, conference rooms, theaters, home theaters, large test cells and educational distance learning classrooms. less