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Select a category below to find the best solution to your sound problems.
More detailed responses to the suggestions below can be found in the Research > Solutions section.

Custom Isolation Door

Our proprietary isolation door designs have full sound tests from the most accurate acoustics lab in the country in both individual and communicating door assemblies. Each door arrives pre-hung in a jamb to match your wall spec with perimeter full seals included.

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Our standard 1-3/4" sound isolation door offers great isolation performance in all frequencies. This pre-hung door uses three 5" ball bearing hinges to support the 230 pound wood slab. The IsoDoor will provide great performance in any wall assembly up to an STC 55.


IsoDoor HD

This is our heavier duty sound isolation door at 2-1/2" and over 330 pounds. Top isolation performance in all frequencies. The unique continuous hinge allows this massive door to open with 1/2 LB or less of operating force. The IsoDoor HD will provide great performance in any wall assembly up to an STC 62. Further gains would be achieved with one of our communicating door assemblies.


Seal the Door Slab

Every door needs at least an automatic door bottom to seal the bottom gap. It has become common for large adjustable stops to be used for the sides and top, but we found light weight seals to work just as well, if not better. We suggest a combination of the seals found below for any sound door.

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Automatic Door Bottom

Automatic door bottom used to seal the gap beneath the door. Expect zero loss performance in even the highest STC rated doors. A smooth finish floor or threshold must be installed beneath the door bottom to create a true seal.

  • $95.00
    ADB Mortised
  • $95.00
    ADB Surface

PDS Light

Lightweight perimeter door seal that installs over existing stops. We recommend this seal for its low closing force and high performance. Cap cover is included to hide the installation fasteners.


PDS Rubber

This triple fin rubber seal works great as a standalone product or to create dead air space between the PDS Light and other PDS Rubber seals.


PDS Threshold

An acoustic threshold to ensure a quality seal for the ADB Mortised or Surface. Also provides an additional seal for a dead air space between the threshold seal and installed ADB.


Seal the Door Frame

The gap between your door jamb and frame needs to be sealed to maintain a high STC rating. Instead of stuffing lightweight gasket in this gap, we suggest flexible mass. It usually takes about 5 putty pads and a tube of acoustical sealant per standard sized door.

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Acoustical Sealant Tubes

Any gaps that remain must be sealed. Our acoustical sealant will seal well to both the framing, jamb, and putty used to fill the perimeter gaps.

  • $107.00
    Case of Acoustical Sealant
  • $9.00
    Tube of Acoustical Sealant
  • $28.00
    Green Glue Caulking Gun