Sound Door Ratings

The high density and solid nature of TruStile doors gives them very good sound reduction characteristics. However, it is ultimately the hardware gasketing and perimeter sealing package that determines the sound rating that a door achieves. The same style of door can achieve very different sound transmission ratings based on the type of sound control hardware that is used. To learn more about controlling sound through door openings visit “Understanding STC Ratings.”

To make ordering STC rated doors from TruStile easier, we have tested our MDF and Wood Doors with hardware packages from Zero International. We display these packages as Package A, B and C in the tables below. All of these ratings are for operable single swing doors with the sound control hardware specified in the right hand side of each table.

High STC ratings

Zero International hardware — Package A
  Zero International Hardware Used:
STC Rating Door Material Door Styles Door Thickness Primary Seal Secondary Seal Threshold Saddle Sweep
39 MDF & Wood 45- & 60-Minute Fire Door 2-1⁄4" #475 #119 #564 #367
38 MDF 90-Minute Fire Door 1-3⁄4" #188FS #118B Flat Surface #369
34 MDF TS5xxx through TS9xxx 1-3⁄4" #475 #119 #564 #367
33 MDF TS1xxx through TS4xxx 1-3⁄4" #475 #119 #564 #367
32 Wood TS1xxx through TS4xxx 1-3⁄4" #475 #119 #564 #367
30 Wood TS5xxx through TS9xxx 1-3⁄4" #475 #119 #564 #367

Moderate STC Ratings

Zero International hardware — Package B
  Zero International Hardware Used:
STC Rating Door Material Door Styles Door Thickness Primary Seal Secondary Seal Threshold Saddle Sweep
32 MDF TS5xxx through TS9xxx 1-3⁄4″ #475 None #564 None
30 MDF TS1xxx through TS4xxx 1-3⁄4″ #475 None #564 None
30 Wood TS1xxx through TS4xxx 1-3⁄4″ #475 None #564 None

Low STC Ratings

Zero International hardware — Package C
  Zero International Hardware Used:
STC Rating Door Material Door Styles Door Thickness Primary Seal Secondary Seal Threshold Saddle Sweep
21 MDF TS1xxx through TS4xxx 1-3⁄4″ #188 None #655 #111A
18 Wood TS5xxx through TS9xxx 1-3⁄4″ #188 None #655 #111A

For more information on the hardware specified in the tables above, please visit Zero International.