R-20 FIBERGLAS® Insulation. 23" x 47" x 6" and covers 120.1 sq.ft. in SpaceSaver® packaging. For 2x6 walls and attics. Friction-fit batts are easy to install and offer outstanding thermal performance providing savings on heating and cooling costs. Non combustible. Made in Canada with a minimum 73% recycled glass content, SCS Certified, GREENGUARD Gold certified for indoor air quality and validated to be formaldehyde free.