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Acoustic Door Seal Kit

(14 customer reviews)

Return Policy: This product may be returned within 20 calendar days after receipt with a 30% restocking fee.

Typical Shipping Lead Time: 2-3 weeks

Product Description

Our Acoustic Door Seal Kit includes jamb seals, a threshold seal and an automatic door bottom to acoustically seal a 36″ x 84″ door. Unsealed gaps and clearances in door assemblies effectively cancel out the soundproofing benefits of the highest-rated acoustical doors. You can use these acoustic door seal kits on a range of wood or metal doors to reinforce the STC (Sound Transmission Loss) of the existing doors and walls.

A 1% opening around a door will allow up to 50% of the sound energy to pass through that opening. Consider this: a 1/8″ opening around all four sides of a door will reduce the effective rating of an STC 52 door down to an STC 21, guaranteeing very poor acoustical performance. Our Acoustical Door Seal Kits close off these clearances or openings.

Each Acoustic Door Seal Kit includes an automatic door bottom, which is spring operated, dropping a neoprene seal onto a threshold and effectively sealing off the bottom of the door. In addition to that, our Acoustic Door Seal Kits include high-grade neoprene door jamb seals for the vertical sides and top of the door and a threshold.

You can field cut these door jambs to shorter lengths to fit smaller doors. You can also trim the automatic door bottom, but cuts should not be closer than 1″ to the set screw. Thresholds are field cut to fit between existing door jamb.

Custom door seals are available for oversized doors as well as double doors. These products are manufactured with a tolerance of +/- 1/8″.


We supply each of the following kits with the same 367 automatic door bottom and offer you a choice of two thresholds. All components have a clear anodized aluminum finish.

  • 485(1)(2): This is the most basic door seal kit. The Jamb Seals in this kit attach to the door stop of the door frame.
  • 170(1)(2): You can adjust the Jamb Seals in this kit. You can typically use these as the door stop and seal.
  • 770(1)(2): You can adjust the Jamb Seals in this kit. You can typically use these as the door stop and seal. The bubble seal on this kit has a compression range of 0.310.”

For more information on our Acoustic Door Seal Kit,
call us at 800.782.5742 or contact our sales department.

Customer Reviews

Genesis Design and Construction Corp James Sapp

Excellent my favorite source

Jason Drapala

Quality construction. Looks great and significant reduction in noise. Definitely worth the price and effort if you have an acoustical issue. In my case I sealed an HVAC closet door. Results were amazing.

Reliable Remodeling

Customer was satisfied


The product itself is great and is working as we expected. The 4 stars are for the lack of clear, detailed instructions that come in the package. Be sure to look at the directions that are on the Acoustical Solutions website or ask the sales associate for detailed instructions.

USG - Facility Manager

Product installed easily. Heavy duty construction. Worked as described.

International Production Matters

Great product.


Order was delivered in good condition and there is swift response

Verified Customer

Used to block sound from a sound studio in the basement of a residential home.