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-So...
Acoustic insulation (Sedro-Woolley)
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