Bass Trap Placement Explained
Updated Nov 13, 2026 · By 
Jonah Mercer · Editorial policy
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Bass traps go in the corners where low-frequency sound gathers, starting with the vertical corners where walls meet the floor or the ceiling. Fill the corners from the floor to the ceiling where you can, then add traps at the wall and ceiling corners behind the listening position.
Start with the vertical corners
Low-frequency sound gathers in the corners, so start where walls meet the floor or the ceiling. The SODOCT traps mount from the bottom to the ceiling of the corner, so fill a corner that way where you can.
Cover the ceiling corners too
Ceiling corners gather low-frequency sound as well. The JBER traps mount between walls and ceilings, and can also be wall-mounted horizontally. The SODOCT traps are made for the corner and the ceiling; mount 3 packs in one corner of the ceiling. The TroyStudio traps mount in corners between walls, floors and ceilings, so a ceiling corner takes the same traps as a floor corner.
Match the trap to the corner
Match the trap size to the corner and the pack count to the room. The JBER pack has 4 traps 12 x 7 x 7 in, the TroyStudio pack has 12 traps 4 x 4 x 12 in, and the SODOCT pack has 8 traps 8 x 8 x 12 in. The AudioSilk panels are wall panels 46 x 23 in, not corner traps, so use them on flat walls for flutter echo and reverb, not in the corners. Count the corners, then count the traps in the pack.
Fix the traps in place
The JBER traps affix with glue, double-sided tape or nails. The TroyStudio traps fix with foam spray adhesive, double-sided tape, small screws or small T-pins, and the SODOCT traps fix with double-sided tape or spray adhesive. The AudioSilk panels go up with removable sticky strips, with 4 medium or large 3M Command strips per panel. Let the SODOCT traps expand for 24 to 48 hours in a ventilated place before mounting, since they arrive compressed.
What you need
JBER 4Pack Acoustic Foam Corner Bass Traps
A 4-pack of corner bass traps 12 x 7 x 7 in, with an NRC rating of 0.9, made for corner mounting between walls and ceilings.
- NRC rating: 0.9
- Panels in pack: 4
- Material: Acoustic Foam
TroyStudio Bass Traps
A 12-pack of bass traps 4 x 4 x 12 in, flame retardant to California Technical Bulletin 117-2013, with 0.07 lb per panel.
- Fire-rated
- Panels in pack: 12, the most here
- Material: Foam
SD SODOCT 8 Pack
An 8-pack of bass traps 8 x 8 x 12 in, with B1 class fire-retardant performance, for the corner and the ceiling.
- Fire-rated
- Panels in pack: 8
- Material: Acoustic Foam
AudioSilk Acoustic Panels
A 4-pack of wall panels 46 x 23 in, flame retardant to EN 13501-1 Class B-s1,d0, made from recycled PET.
- Fire-rated
- Panels in pack: 4
- Material: Foam
These come from our ranked list Best Acoustic Panels for Bass, which compares them spec by spec.
Frequently asked questions
Where should bass traps go in a room?
In the corners, where low-frequency sound gathers. Start with the vertical corners where walls meet the floor or the ceiling, then add traps at the wall and ceiling corners.
How many bass traps do I need?
It depends on the corners and the room. The JBER pack has 4 traps, the TroyStudio pack has 12, the SODOCT pack has 8, and the AudioSilk pack has 4 wall panels. Count the corners, then count the traps in the pack.
Do bass traps go on the ceiling?
Yes, ceiling corners take traps too. The JBER traps mount between walls and ceilings; for the ceiling corner, mount 3 packs of SODOCT traps.
How do you install bass traps?
The JBER traps fix with glue, double-sided tape or nails, and the TroyStudio traps fix with foam spray adhesive, double-sided tape, small screws or small T-pins. The SODOCT traps need 24 to 48 hours to expand after opening.
Ranked acoustic panels lists
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