3 chunks of acoustic insulation, 1/2 inch thick: 44 x 48 inches, 2 sections of
31 x 24 inches.
Like this: https://www.homedepot.com/pep/1-2-in-x-48-in-x-96-in-Acoustic-Insulation-Sound-Board-BSNAT85US/207168829?source=shoppingads&locale=en-US&pla=&mtc=SHOPPING-BF-CDP-GGL-D22-022_004_INSULATION-NA-NA-NA-PMAX-NA-NA-NA-NA-NBR-NA-NA-NEW-PMAX&cm_mmc=SHOPPING-BF-CDP-GGL-D22-022_004_INSULATION-NA-NA-NA-PMAX-NA-NA-NA-NA-NBR-NA-NA-NEW-PMAX-18098284019--&gclsrc=aw.ds&gad_source=1&gad_campaignid=18098304239&gclid=EAIaIQobChMIuv-CyYSLkAMV8RCtBh0qFTIUEAQYAiABEgJlpvD_BwE
