The top 5 tray tables: clever and affordable crafts

A tray is a shallow platform designed for the carrying of items. Trays are flat, but with raised edges to stop things from sliding off them. It can be fashioned from numerous materials, including silver, brass, sheet iron, paperboard, wood, melamine, and molded pulp. Trays range in cost from inexpensive molded pulp trays which are disposable, to inexpensive melamine trays used in cafeterias, to mid-priced wooden trays used in a home, to expensive silver trays used in luxury hotels. Some examples have raised galleries, handles, and short feet for support. They are made in a range of shapes but are commonly found in oval or rectangular forms, sometimes with cutout or attached handles with which to carry them.

A butler’s tray often has a gallery, or deeper surround, handles on the long sides to facilitate carrying (usually cut into the surround), and a portable stand with folding legs. It is used for the service of drinks and generally serves as a convenient side table.
A cafeteria tray is used for carrying items in a cafeteria. It is typically made of plastic or fiberglass. A compartment tray or mess tray is a cafeteria tray designed to be used directly, without dishes – it incorporates shallow compartments in which different types of food are placed.
A molded pulp tray is a disposable (or recyclable) tray provided by fast food restaurants, coffee shops and movie theaters. The tray is designed to hold four disposable cups.
Surgical trays are used to carry surgical instruments, are rectangular and made of stainless steel to resist the heat of sterilization without corrosion.
Seed trays are used for propagating vegetables and flowers and other plants from seed. They are also used for taking plant cuttings. The trays for seedling production are made of expanded polystyrene or polythene. They come in many sizes; the most common are the Danish and the European sized trays.
A darkroom tray, also known as print developing tray, is used in photography.
A dental impression tray is a receptacle or device that is used to carry impression material to the mouth, confine the material in apposition to the surfaces to be recorded, and control the impression material while it sets to form the impression.
A baking tray or oven tray is used to cook a variety of foods in an oven, including vegetables and meats such as whole chickens. It allows food to be very exposed to the hot air inside the oven whilst preventing any fats of liquids from falling onto the oven floor. See also Sheet pan.
Food packaging trays
A foam tray is used by the supermarkets and by the fruit shops to package meat and small fruits, vegetables and mushrooms. Patents for this product exist since 1966.
Aluminium foil take-out food tray used by the supermarkets for packaging processed food.
Thin plastic trays used for both packaging shelf food and for take-out food

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