Sound Control Doors

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Which soundproof door is right for my project?

The sound isolation doors required for your project will depend on your ultimate goals and the construction of the wall in which you intend to install the sound control door. For a standard wall with no isolation products or products with limited performance like resilient channel or MLV, the IsoDoor V will be your best option. For a wall with Green Glue Compound, resilient channel with multiple layers of drywall, or staggered stud walls, the IsoDoor would be your better option. For a wall with resilient clips or double stud framing, the IsoDoor HD/HD LF would be your best option.

Which sizes are available?

Our standard size is 36" x 80", however, we can manufacture each model in any possible reasonable size. The typical range as a single door size from 24" to 48" wide and 24" to 96" tall, or in any double door size from 48" to 96" wide and 24" to 96" tall.

What are the differences between each door model?

IsoDoor V

Most often used in common walls that require more than the standard solid core or solid wood door. Hotels, home offices, and bedrooms commonly utilize this model. The IsoDoor V will keep up with walls that have resilient channel or MLV installed without losing performance. This sound dampening door is 1-3/4" thick, weighs 140 pounds (7 pounds per square foot) at a standard size of 36" x 80", and performs great in walls up to STC 47.

IsoDoor SD

Most often used in offices, vocal booths, and other similar areas where privacy is of greater concern. This sound dampening door is 1-3/4" thick, weighs 230 pounds (11.5 pounds per square foot) at a standard size of 36" x 80", and performs great in walls up to STC 55.

IsoDoor HD/HD LF

Most often used in home theaters, recording studios, and other areas to maintain high STC and OITC ratings. This recording studio door is 2-1/2″ thick, weighs 340 pounds (17 pounds per square foot) at a standard size of 36" x 80", and is our highest performing door for walls up to STC 62. Customers will still use this soundproof home theater door in even higher STC walls ranging up to the high 60's STC as generally the OITC (low frequency performance) is more relevant and important. Another version of the IsoDoor HD is the IsoDoor HD LF. The specs on the HD LF are very similar to the HD, but the change in core design brings a considerable increase in low frequency isolation.

Communicating

To reach the highest STC and OITC ratings, while still buying doors that are affordable and easy to install, we strongly recommend communicating assemblies. This is when there are two soundproof interior doors installed in the same opening (like in a common wall of a hotel room). Our STC 50 to STC 63 tests are communicating tests using a combination of our IsoDoor SD, IsoDoor HD, and IsoDoor V.

What about higher STC rated doors?

There are manufacturers that make claims on single doors rating up to STC 56. Some of these manufacturers can deliver on this claim, but most cannot. We have seen an STC 56 door, but it was a steel door that weighed around 800 pounds with a steel frame back filled with concrete - and also a $8,000 price tag. Most of the high STC claims are on doors that have never been tested or doors that have not been tested in the 21st century.

This leads to either absolute false information or test reports that are so inaccurate that they should not be taken seriously. STC is also a number applied to doors that doesn't really represent how the door will perform in your project. If your wall is an STC 50, you don't need an STC 50 door. You generally need about an STC 40 door. If you are building a theater room or recording studio, the STC rating of the door is irrelevant as your main concern will be in the lower frequencies not represented by STC. Let us know your goals for your project and your wall construction and we will help you specify the correct door(s)!