A gridiron is a metal grate with parallel bars typically used for grilling meat, fish, vegetables, or combinations of such foods. It may also be two such grids, hinged to fold together, to hold food securely while grilling over an open flame.
Early examples of the gridiron were found in Pompeii. The Latin term is "craticula", a diminutive form of "crates". This referred to their cross-hatched design, which appeared similar to a wicker basket, or crate. This is also used as the base for the term graticule, passing through French.
There were numerous iron gridirons manufactured and patented in the U.S. in the 1800s. Originally called spiders, these iron legged devices were used in a fireplace placed over the fire to cook food. Over time, gridirons have been developed specifically to accommodate the type of food being prepared and the cooking method being used. A combination hinged gridiron and spider was developed and patented in 1836 by Amasa and George Sizer of Meriden, Connecticut. A steel wire gridiron was developed and patented as early as 1889 in New Haven, Connecticut, by William C. Perkins, of the New Haven Wire Goods Co., who received a U.S. Patent #408,136 for a hinged gridiron that would hold the meat in place while broiling. A commercial hinged broiler or gridiron was designed for use in the Bridge & Beach, Co., 1898 vertical cast iron stove. This hinged broiler was manufactured by Luigi Pieragostini, also of the New Haven Wire Goods Co., and patented in 1939; U.S. Patent #2,148,879.
Today, hinged gridirons are used extensively to deep fry or broil fast food in restaurants throughout the world. Hotdog gridirons are also available for camping and outdoor cooking.
Cultural references 
Gridirons are essential to Chapter 28 of David Copperfield when David, the Micawbers and Traddles improvise a meal on one. Dickens mentions them again as a suitable and practical gift for a blacksmith to make for someone in Charles Dickens' book Great Expectations where he refers to their use for cooking small fish known as "sprats".
The American football field resembles a gridiron, which brought up the term "gridiron football".
In Christian iconography the gridiron is an attribute of Saint Lawrence of Rome.
- ^ Daremberg & Saglio, "Craticula", Dictionnaire des Antiquités Grecques et Romaines, Librairie Hachette et Cie., Paris, 1877‑1919
- ^ "graticule", Merriam-Webster
- ^ U.S. Patent #78
- ^ U.S. Patent #408,136
- ^ U.S. Patent #2,148,879
- Elliott, Richard Smith (1883). Notes Taken In Sixty Years. R. P. Studley & Co.
- Riccio, Anthony V. (2006). The Italian Experience In New Haven : Images And Oral Histories. SUNY Press. ISBN 0-7914-6773-2.
- Romaine, Lawrence B. (1990). A Guide To American Trade Catalogs 1744-1900. Courier Dover Publications. ISBN 0-486-26475-0.