The Oasis Mailbox and Drop Box is assembled almost exclusively by spot welding and welded lap joints to eliminate unsightly rivets on the outside surface. The doors are assembled using stainless steel spin rivets. Other hardware is assembled with corrosion resistant screws. They are finished in a durable powder coat and are available in Black, White, Pearl Gray, Sand and Bronze.Body: 16 gage (1.5 mm) steel sheet Door: 14 gage (2.0 mm) steel sheet Assembly Hardware: Stainless steel ivets and hinges. Zinc plated assembly screws Lock: Zinc plated cam lock with zinc die cast cylinders Large incoming hopper style door design to allow delivery of small to medium sized parcels P - Type rubber door seals prevent rain and dust from entering the mail storage compartment All installation hardware and instructions are included Custom Lettering (up to 6 - 3 characters)Height: 20 Width: 13.5