GFRG Groin Vaults & GFRG Columns GFRG Groin Vaults & GFRG Columns https://gcproductsinc.com/wp-content/uploads/2012/05/GFRG-Groin-Vault1.jpg 1024 768 gcproductsinc gcproductsinc https://secure.gravatar.com/avatar/a8dfc39e3383a2afea077051503e2a87?s=96&d=mm&r=g May 29, 2012 May 29, 2012 These GFRG Groin Vaults and GFRG Columns were put in a large custom home in the Atherton, CA area.