GoBoard - Did you know you can fabricate benches and niches out of GoBoard Tile Backer? #waterproof built-in. 💦 . #repost . Little Tile Guy, LLC (@littletileguy) “custom-built niches make everybody happy #
Johns Manville GoBoard 3-ft x 5-ft x 1/2-in Waterproof Polyisocyanurate Backer Board in the Backer Board department at Lowes.com