How to Size Custom Acoustic Panels
Updated Nov 13, 2026 · By 
Jonah Mercer · Editorial policy
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Size custom acoustic panels by measuring the wall area to cover, then matching panel size and thickness to that area. Panels here measure 12 by 12 inches in 1-inch and 2-inch thicknesses, so count the panels the area needs from the coverage each pack states. Check thickness, pack count and coverage before ordering.
Measure the wall area
Measure the width and height of the wall area to cover, and write the figures down before ordering. Panels here measure 12 by 12 inches, so the area decides how many panels fit in a row and how many rows fit the wall. The SD SODOCT pack covers 24 square feet, and the Knightsacoustic pack covers 7200 square inches, so match the pack coverage to the wall area. Leave the layout planned on paper before mounting anything.
Pick the thickness for the job
Panels here come in 1-inch and 2-inch thicknesses. The SD SODOCT and Knightsacoustic panels are 2 inches thick, while the TOUO and Temgcuam panels are 1 inch thick. Every panel measures 12 by 12 inches on the face, so thickness is the size difference to weigh with the pack count. Check the thickness on the listing before ordering.
Plan the layout before mounting
Lay the panels out on the floor and plan the pattern before mounting anything. The SD SODOCT panels have a pyramid shape, while the TOUO, Knightsacoustic and Temgcuam panels have a wedge shape. The TOUO panels come in multiple colors for mix-and-match combinations, so plan the color layout with the pattern. The Temgcuam pack includes 270 adhesive pads, and the SD SODOCT panels install with construction adhesive or nano double side tape, which are not included.
Let the foam recover its shape
Foam panels arrive compressed and need time to regain their shape. The TOUO panels expand within 24 to 48 hours after unpacking, and the Knightsacoustic panels recover their shape within 3 to 5 hours. The TOUO panels can soak in warm water for 3 to 5 minutes, then dry in a dryer at medium heat, while the Knightsacoustic panels can soak in water for 1 minute and dry at a low temperature or air dry. Wait until the panels hold their shape before mounting them.
Check fire rating and warranty
Check the fire rating on the listing before ordering. The SD SODOCT panels are flame retardant certified, and the TOUO panels are flame-resistant and self-extinguish within 1 minute. The SD SODOCT pack also carries a 6-month warranty.
What you need
SD SODOCT 24 Pack 2” Thick Pyramid Acoustic Foam
A 24 pack of 2-inch pyramid panels covering 24 square feet, with flame retardant certification and a 6-month warranty for studio walls.
- Thickness: 2 in
- Fire-rated
- Panels in pack: 24
- Material: Acoustic Foam
- 6-month warranty stated
TOUO 12 Pack Acoustic Panels
A 12 pack of 1-inch wedge panels with double-sided adhesive tape included, expanding within 24 to 48 hours after unpacking.
- Thickness: 1 in
- Fire-rated
- Panels in pack: 12
- Material: Foam
Knightsacoustic 50 Pack Sound Proof Foam Panels
A 50 pack of 2-inch wedge panels covering 7200 square inches, recovering their shape within 3 to 5 hours after unpacking.
- Thickness: 2 in
- Panels in pack: 50
- Material: Foam
Temgcuam 54 Pack Acoustic Foam Wall Panels
A 54 pack of 12 by 12 by 1 inch wedge panels with 270 adhesive pads included for tool-free mounting on walls or ceilings.
- Panels in pack: 54, the most here
- Material: Acoustic Foam
These come from our ranked list Best Acoustic Foam, which compares them spec by spec.
Frequently asked questions
How many panels cover a wall?
Count the panels from the coverage each pack states. The SD SODOCT pack covers 24 square feet, and the Knightsacoustic pack covers 7200 square inches, so measure the wall area and match the pack coverage to it.
What thickness should acoustic panels be?
Panels here come in 1-inch and 2-inch thicknesses. The SD SODOCT and Knightsacoustic panels are 2 inches thick, while the TOUO and Temgcuam panels are 1 inch thick, so check the thickness on the listing with the pack count.
Do acoustic panels include adhesive?
Some do and some do not. The TOUO pack includes double-sided adhesive tape, and the Temgcuam pack includes 270 adhesive pads, while the SD SODOCT and Knightsacoustic panels do not include adhesive.
How long do foam panels take to expand?
The TOUO panels expand within 24 to 48 hours, and the Knightsacoustic panels recover their shape within 3 to 5 hours, so wait until the panels hold their shape before mounting them.
Ranked acoustic panels lists
More how-to guides
Product details come from each Amazon listing and can change. Check the listing before you buy.