We can provide glass and wood for your Cantilever Shelving Unit. Glass or wood can be requested when creating your custom order. We will send you a quote for the specified material, quantity and sizes for your unit. Our standard glass shelves are 3/8" thick. We don't recommend using thicker glass, but can quote out different thicknesses if requested. Our standard wood shelves are 3/4" thick and are available in several stock wood species.