C.R. LAURENCE SE1418W CRL White 18&quot; Aluminum Shelf Kit for 1/4&quot; Glass by C.R. Laurence. $24.46. Available For 1/4&quot; and 3/8&quot; (6 and 10 mm) Thick Glass Available in Four Lengths and Finishes Easy to Install CRL Aluminum Shelf Extrusions are designed to support glass shelves without a lot of visible metal. The cleat easily attaches to studs with screws, and can support a shelf with a maximum projection of 12 inch (305 millimeter). Offered in 96 inch (2.4 meter) long Extrusi...