How to Soundproof a Room That Is Already Built

If you want to build the ultimate home theater room or home recording studio, you'll need not only the right equipment but you'll need a soundproof room, as well. Outside noises have to be eliminated when recording and loud movie effects and soundtracks can disturb the rest of the household, even the neighbors. To make a space soundproof, you'll need some materials you can purchase at most musical instrument retailers and even some home electronics retailers.

Things You'll Need

  • Tape measure
  • Notepad
  • Utility knife
  • Acoustic-damping tiles
  • T-pins
  • Rubber mallet
  • Acoustic ceiling tiles
  • Sound deadening mats

Video of the Day

Move everything out of the room.

Measure the height and width of each wall in the room with a tape measure. Write the dimensions down on a notepad, denoting which measurements go to which wall.

Cut acoustic-dampening tiles to fit the walls with a utility knife. Fasten the acoustic-dampening tiles to the walls by hammering T-pins through the tiles and into the wall with a rubber mallet. Hammer several T-pins in each tile to make it stay in place.

Measure and cut acoustic-ceiling tiles to secure to the ceiling. You can get the approximate ceiling measurements by measuring the floor. Fasten the acoustic ceiling tiles to the ceiling by hammering T-pins through the acoustic tiles into the ceiling.

Cover the bare floor with sound-deadening mats from wall to wall. Cut the edges of the sound-deadening mats as necessary to fit tightly against each wall, leaving none of the bare floor visible.


  • "Build Your Own Soundproof Music Room"; Chris Talley; 2009
  • "Home Recording Studio: Build It Like the Pros"; Rod Gervais; 2006
Promoted By Zergnet
Is DIY in your DNA? Become part of our maker community.