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Karpen Steel Custom Doors and Frames

Phone (828) 645-4821
Fax (800) 851-2131
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Doors

Acoustic Door & Frame Assemblies

Karpen Steel's acoustic doors and frames combine outstanding sound transmission loss with the appearance of standard hollow metal products.

zerodoor.gifTypical Installations & Usage

  • Radio/Television Stations: Broadcast/recording areas
  • High schools/theaters: Music areas/auditoriums
  • Areas for private speech: Government secure areas
  • Office Buildings: Mechanical rooms
SOUND TRANSMISSION CLASS (STC)
STC VALUE RATING DESCRIPTION
50-60 Excellent Loud sounds heard faintly or not at all
40-50 Very Good Loud speech heard faintly but not understood
35-40 Good Loud speech heard but hardly intelligible
30-35 Fair Loud speech understood fairly well
25-30 Poor Normal speech understood easily & distinctly
20-25 Very Poor Loud speech audible

STC Ratings

  • Operable door tests in accordance with ASTM E90. Copies of test results are available.
  • STC 47: Single: Flush
  • STC 47: Single: Flush
    • UL Label 1½ Hour
    • 3'-0" x 7'-0" Max Size
  • STC 41: Single: Vision Lite
    • 3"x 33" exposed glass or
    • 10" diameter round
  • STC 38: Pair: Flush
    • Provided with double astragals

Frame

  • 14-Gauge cased open

Door

  • 14-Gauge
  • Vertically steel stiffened, seamless edge

Sold as unit only.

  • Price includes frame, door, crate and hardware.
  • Zero International sound seals and hinges are supplied.
  • The distributor only needs to supply the lock and closure.

Standard Hardware Finish

  • Clear Anodized Aluminum
  • All doors and frames are primer finished.
  • All cam lift hinges are stainless steel.

Maximum Sizes
Singles:

  • 4'-0" x 7'-0" or
  • 3'-6" x 8'-0"

Pairs:

  • 8'-0" x 7'-0" or
  • 7'-2" x 8'-0"

Weight

  • 3'-0" x 7'-0" door weighs 380 lbs
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181 Reems Creek Rd., Weaverville, NC 28787
(828) 645-4821 • (800) 851-2131 fax
(828) 645-3230 fax outside USA
karpensteel@karpensteel.com
Karpen Steel Custom Doors and Frames
All material © Karpen Steel 2014