The SmallTray is a rigid, protective tray designed to support works of art in display frames or storage. When properly glazed and sealed, it is archival, airtight, and water-resistant. Trays up to 3/4” deep have a frame of 1/16” thick aluminum angle. For trays deeper than 3/4”, we use 1/8” angle. The aluminum is raw, not powdercoated. The base of the tray is 4mm dibond with a polyester coating on both sides. The SmallTray is available in custom sizes up to 40” x 60” in depths from ¼” to 3”.