Sound Lock™ Door Bottom Seal

FREE Standard Shipping Details


FREE Standard Shipping

Free shipping is valid on any order shipped to a single address in the mainland USA. Standard shipping is covered. Overnight or 2-day delivery will cost extra.

Our products are bulky and heavy. Free shipping is hard and expensive.

Read More About How We Do It


Sound Lock Door Bottom Seal

The Sound Lock Door Bottom Seal will automatically drop to seal the gap at the bottom of your door. This bottom seal creates positive pressure against any hard flooring surface, significantly outperforming other door seals while maintaining an easy door swing. No threshold required!

Product Information

  • Increases solid core door STC rating up to 43
  • Durable and economical door soundproofing
  • Anodized aluminum with neoprene seal
  • Automatic drop mechanism will soundproof the gap below the door panel
  • UL fire rated
  • Use on any hard floor surface (no carpet!)


How to Measure Your Door for Fit

  1. Confirm that your door is a solid core door. The Sound Lock Bottom Seal will not work on a hollow core door.
  2. Open the door.
  3. Measure the width of the door panel from lift to right. Write it down.
  4. The Sound Lock Bottom Seal should only be cut a maximum of 2”. For example, a door that measures 31" wide should get a 32" bottom seal.
  5. The bottom seal should drop 3/8” to the floor below.


Any gaps in your solid core door will continue letting sound through! Check out our Sound Lock Gasket Seal Kits and Sound Lock Adjustable Door Seal Kits to also seal the perimeter of the door panel.

Shipping Cost:
Calculated at Checkout
Project Category:
Room Soundproofing
Material Type:
Soundproof Door