CelluZorbe™ Cellulose Acoustic Panels

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CelluZorbe (24" x 48", 8 sq ft per) panels are budget friendly and environmentally sustainable, made of mostly recycled cellulose fibers. Excellent acoustical performance and thermal insulation. No itch, Class A fire rated, and easy to install.

Bulk discounts available. Save per panel at 14, 28 and 56 panels.
Covers 8.0 SF

CelluZorbe™ Cellulose Acoustic Panel

CelluZorbe is an environment and budget friendly thermal and acoustical panel. Made primarily of recycled newspaper, this sound absorber and thermal insulator will not cause itchiness or irritation like fiberglass. Whether you are looking for an alternative to fiberglass insulation, DIY acoustic panels, general noise reduction, or just value sustainability when solving sound and heat problems, the CelluZorbe panel is a flexible solution!



  • Cellulose-based acoustic materials are environmentally friendly and excellent for sound absorption and thermal insulation
  • Completely recyclable, with no scrap produced during manufacturing or installation
  • Made from renewable and recycled fibers (90% recycled content, post-consumer paper
  • Resists mold and fungal growth
  • Temperature rated up to 280°F
  • R-value: 3.7 per inch
  • Class A Fire Rated
  • Easy to handle and install
  • Proudly made in the USA 




 Dimensions  24" x 48" (custom sizes up to 48" x 96") 

 1", 2" 

 Weight   2 lbs (1"), 4 lbs (2")
 Density   3# (6# available via phone) 
 Color   Natural 
 Thermal Resistance (R-value)   3.7 per inch
 Cuttable   Yes, in the field or in our shop 
 Itch & Irritation    None 
 Recommended Adhesive   P329 Spray Adhesive




 Spec Sheet   CelluZorbe™ Product Sheet 
 Architect CSI Specs 

 CelluZorbe™ Wall Panel CSI Spec 
 CelluZorbe™ Ceiling Panel CSI Spec  

 Install Guide 

 CelluZorbe™ Install Guide (P329 Spray Adhesive) 
 CelluZorbe™ Install Guide (Construction Adhesive) 



Material Testing

Noise Reduction Coefficient

 Frequency (Hz)  125   250   500   1000   2000   4000   NRC 
 1" CelluZorbe™ Cellulose Panel   0.09   0.26   0.84   1.05   1.05   1.05   0.80 
 2" CelluZorbe™ Cellulose Panel   0.39  0.63  1.18  1.11  1.06  1.09  1.00







Install Instructions

Recommended Adhesive: P329 Spray Adhesive

  • Place the CelluZorbe™ panel on the wall. Make a horizontal and vertical line along the edge of the panel using a level, intersecting at one corner.
  • The P329 Spray Adhesive is an aggressive, pressure sensitive adhesive designed for PERMANENT bonding of our acoustical panels to a drywall, metal, concrete, or wood substrate.
  • Apply spray adhesive to both the material and the substrate with 80 to 100% coverage. To avoid overspray, a small gap around the edge is not a problem.
  • Allow 2-4 minutes for the spray adhesive to tack up.
  • Press the material and substrate together with as much pressure as practical. The initial bond is very strong, but maximum strength is achieved in 1-3 days.
  • These steps can be found in our CelluZorbe™ P329 Spray Adhesive Install Guide.

If buying adhesive locally, we recommend a combination of construction adhesive (Loctite Power Grab or equivalent) and spray adhesive (3M Super 77 or equivalent). See our CelluZorbe™ Install Guide (Construction Adhesive) for instructions.


Common Product Uses

  • CelluZorbe™ is an excellent choice for making your own DIY acoustic panels
  • Used on walls, ceilings, or as an acoustical backer
  • Cost-effective acoustical material for "hidden absorption" to improve sound quality in a variety of spaces (restaurants, bars, offices, schools, gymnasiums, houses of worship, entertainment venues, and auditoriums, insulating a speaker box)
  • Recycled and sustainable thermal insulation alternative to fiberglass (no formaldehyde)
  • If you need budget friendly sound absorption with sound blocking properties, consider our CelluZorbe™ HD Backer Board.