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Fire Rated Acoustic Doors University of Minnesota - Northrop Auditorium University of Minnesota - Northrop Auditorium
Doors up to 65 Feet x 65 Feet
Sound Isolation to STC 60
Custom Engineered Doors
Sliding Doors Without Floor Track

CDL® specializes in the design and manufacture of acoustic doors, with a reputation for providing custom steel door solutions for the most challenging of projects. CDL is the USA trading division of Clark Door Limited, an independent company based in the UK, who export to over 40 countries.  With over 30 years' of independent acoustic test data, Clark Door has built a worldwide reputation for supplying high quality, reliable doors to the entertainment industry, film studios, music venues, theaters, universities, cultural centers and many other industries requiring specialist, sound insulating and acoustic fire rated doors.

Our Acoustic/Fire Rated Products

Horizontal Sliding Doors
Horizontal Sliding Doors
Vertical Sliding Doors
Vertical Sliding Doors
Acoustic Swing Doors
Acoustic Swing Doors
Pivot Doors
Pivot Doors
Doors up to <br />
65ft x 65ft
Doors up to
65ft x 65ft

CDL™ is the leader in providing large high attenuation acoustic doors up to 65ft x 65ft. If there is a theater or space management project requiring an oversized door, please allow our engineers to propose a solution for your application.

Sound Insulation <br />
up to STC-60
Sound Insulation
up to STC-60

Our custom door solutions are engineered for the highest performance and reliability, while also being mindful of elements such as ease of use and maintenance. All CDL™ products are quality assured to ISO/IEC 17025 and independently certified to UKAS (NVLAP Equivalent) standards.

Optional Fire <br />
Rating
Optional Fire
Rating

CDL Horizontal & Vertically Sliding doors can be provided with fire ratings up to 2 hours according to NFPA 252 which eliminates the added cost of a separate fire shutter. CDL Steel Swing Doors can be fire rated to UL 10C and NFPA 252 up to 90 minutes and are delivered complete with UL rated finish hardware.

Safety <br />
Features
Safety
Features

All CDL™ products are designed with safety in mind. Our products are fully assembled and functionally tested in house prior to shipment, ensuring successful operation upon arrival and installation. Please feel free to ask us for more details on how we make safety a priority.

No Floor <br />
Track
No Floor
Track

CDL sliding door products are designed to meet the customer’s primary needs. This often means being able to easily transport sensitive equipment and displays through a variety of openings. Our solutions use no floor track, which not only provides convenience but also eliminates many frustrating maintenance issues.

The CDL single acoustic vertical sliding door is ideal for corridors and spaces with limited side room and ample headroom. In addition to minimising floor area taken up by the door, the single sliding acoustic door will deliver the highest acoustical attenuation.  No threshold or floor track is required, the door seals directly to...
Horizontal sliding acoustic doors are space saving, unlike swing doors, when in the open position they do not obstruct the opening. The CDL acoustic horizontal sliding door is available from STC35 up to STC60. Using minimal projected space into the building these doors are ideal for spaces where there is...
CDL Acoustical metal swing doors are made from steel and provide superior strength and insulating properties, making them suitable as sound barriers (acoustic doors) up to STC57. Available as single or double leaf door, CDL steel hinged acoustic swing doors come complete as a door set with door leaf, frame...
CDL acoustical oversized metal swing doors are designed to your custom sizes. Made from heavy duty steel faced acoustic panels to provide superior strength and insulating properties, making them suitable as sound barriers up to STC56. Fire ratings are optional up to two hours to NFPA252.

Testimonials

The acoustic doors were installed over 10 years ago and we have never had any problems; very pleased with the Clark doors

Maintenance Manager - Wales Millennium Arts Centre - Cardiff

We are very happy with your product and the relative ease of working through all of the details with your office.

Jim Moore, HGA Architects

We are extremely pleased with the door it has met and exceeded our expectations.

Louie Ortiz, The Specialists Ltd.