Jumbo Slabs / BBQ Slabs / Slabs can be simply used for outdoor kitchens. These slabs can be used for island kitchens in your backyard. Jumbo Slabs are stocked in variety of colors & stones including granites,sandstone and limestones. It won’t etch, or discolor, or lose its shine. Sealing granite countertops is a good idea to prevent stains. However, this is not complicated… easily done.