Memorial Day Sale banner
architectural top seller

Sound Lock™ Soundproof Door

Interior soundproof door with an STC value up to 56. Attractive wood finish comes pre-assembled with adjustable soundproof jamb and bottom seals.

This product ships in 4-6 weeks.

To request a quote, you need:

Door dimensions
Number of doors

Sound Lock™ Soundproof Door



Product Information

  • High performance soundproof interior finished in real oak veneer
  • STC rating up to 56
  • Attractive and durable
  • Cost-effective door soundproofing option
  • Pre-hung and pre-assembled for a simpler installation
  • Ready to stain or paint to match your design aesthetic
  • Proudly made in the USA 


  • Type of Wood: Oak (standard), Maple, Birch, Cherry, Walnut, Custom wood species
  • Size: Nearly any size specification
  • Thickness: 2-3/4"
  • Weight: Over 350 lbs
  • Window Options: 10" x 10", 6" x 28", 22" x 28", 22" x 56"
  • Custom finishes and hardware options available (see Hardware PDF)
 Architect CSI Spec   Sound Lock Door CSI Spec 
 Install Guide   Sound Lock Soundproof Door Install Guide 


Product Uses

Select Your Door Swing

left-hand-swing-sm.jpeg   right-hand-swing-sm.jpeg


Installation Guide

  • Door is designed for a 2x4 or 2x6 construction. 6" jamb extensions available to meet any wall thickness
  • Recommended to double stud the entire opening. At minimum, must double stud the hinge side of the door. Steel studs should be backed with wooden studs.
  • The bottom seal must drop onto a hard surfaces. For carpeted floors, you must put in a hard transition.
  • Adjustable and mechanical seals are built into the door. Adjust them correctly before putting the caps on the door.
  • This door weighs 350 lbs and is designed for top end soundproofing. Installation should be done with tighter tolerances and attention to detail. READ THE GUIDE before attempting installation.
  • Download the Sound Lock Soundproof Door Install Guide


Contact us if you have questions!



Sound Transmission Class

 Type of Soundproof Door 
  STC Rating 
 Standard Door 56
 Door with Small Window (6" x 28", 10" x 10")  53-55
 Door with Large Window (22" x 28", 22" x 56")  51-53





All door windows use the same construction as our Tru Acoustics soundproof windows (STC 49) to maintain soundproofing integrity.

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