Non Grouted STC Rated Hollow Metal Frames

WELDED OR KNOCKED DOWN
STC 47 - STC 45 (OITC 35)

Non Grouted STC Rated Hollow Metal FramesLindstrom Corporation manufactures a hollow metal door frame for use with an acoustical door which was tested by Architectual Testing, Inc. The door frame is furnished with a gasket and threshold package provided by Zero Corporation, and may be used with
Lindstrom's acoustical door with an STC rating of 47 or 45 (OITC 35) depending on the sound seal package provided.

The door frame may be furnished either welded or knocked down and may be installed without being grouted. The frame is fabricated in a unique double walled and insulated design which should wrap the wall when installed.

Lindstrom's acoustical door frame may also be used with another manufacturer's door which has tested to an STC 48 in an inoperable test and carry the same rating.

Please refer to the Door Frame Specifications in our Hollow Metal Catalog for a description of our standard specifications.

TEST RESULTS PROVIDED ON REQUEST