Johns Manville Formaldehyde-Free™ Fiberglass Insulation (Specific for 6" WOOD framed walls spaced 16" apart) Dimensions: 5.5" x 15" x 47" (7 pieces) Coverage: 48.96 sq. ft./bag Application: Interior Walls JM Formaldehyde-Free™ fiberglass insulation promotes better indoor air quality, provides superior thermal efficiency and a reduction in sound. Data Sheet