door stc rating

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SDI 114 is no longer published as an SDI performance standard. The new SDI standard for acoustical Performance is SDI 128-09 Steelcraft does offer products that have been tested in accordance wit...
A UL 20 minute fire rating is the maximum fire rating for a Full Glass (FG) door design. A14-Series door construction: Max fire rating is 20 minute. UL label only FG must use Over-Lapping Stee...
STC stands for Sound Transmission Class. An STC (Sound Transmission Class) is a single number rating system derived from measured values of sound transmission loss in accordance with ASTM E90 and...
Steelcraft have tested different types of doors and frame assemblies using Zero International gasket seals for the various STC ratings. Tests are in accordance to ASTM...
Frames can be installed either KD (knock down) or welded to receive the STC rating.
Steelcraft borrowed light frames are not listed/tested. Check with the glass manufacture if they are listed and with what type of framing used.
Sound seals are required. Zero International Gasket Notes: Perimeter Seals – Zero #475 applies to the stop of the head and jambs. Door bottom – Zero #367, surface applied. Threshold ...
 Cam Lift Hinges are specially designed hinges used mainly on acoustical door assemblies. The Cam Lift Hinge lifts the door during its travel and seats the door bottom for a pos...