PTC Home & Garden Tapered Four Layer Shelf, Pewter This versatile handmade concave shelving unit can be used inside or outside! Ships with textured finished glass shelves that adds mystery to the product The top shelf and bottom shelves measure 14 x11", the middle two shelves measure 11 square. The product that has been manufactured from recycled wrought iron Product has been powder-coated for year round weather resistance for use both indoors and outdoors