9mm Cork Roll – 3/8" Heavy-Duty Cork for Pinboards & Soundproofing

The 9mm cork roll — approximately 3/8 inch thick — is the choice when 6mm isn't quite enough. This heavy-duty thickness is ideal for bulletin board walls that see intensive daily pinning with jumbo or heavy-duty pushpins, high-traffic classroom or office environments, and wall installations where acoustic insulation is a secondary goal alongside the pinning surface. At 9mm, cork begins to offer meaningful sound-dampening properties when installed flush against drywall, reducing mid-frequency airborne noise in open-plan offices and recording rooms. BangorCork's 9mm roll holds pins deeply enough that even thick items — rolled posters, fabric swatches, or multiple layered documents — stay securely anchored without the pin pulling free. Made from 100% natural Portuguese cork. Self-healing surface. Available in 4-foot widths. Pair with a fiberboard backer for a premium professional result.