Diamond plate, also known as checker plate, tread plate and Durbar floor plate, is a type of lightweight metal stock

Fabrication (metal)

Fabrication as an industrial term refers to building metal structures by cutting, bending, and assembling. The cutting part of fabrication is via sawing, shearing, or chiseling ; torching with handheld torches ; and via CNC cutters...

 with a regular pattern of raised diamonds or lines on one side, with the reverse side being featureless. Diamond plate is usually steel

Steel

Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

, stainless steel

Stainless steel

In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass....

 or aluminum

Aluminium

Aluminium or aluminum is a silvery white member of the boron group of chemical elements. It has the symbol Al, and its atomic number is 13. It is not soluble in water under normal circumstances....

. Steel types are normally made by hot rolling, although modern manufacturers also make a raised and pressed diamond design.

Used on stairs

Stairway

Stairway, staircase, stairwell, flight of stairs, or simply stairs are names for a construction designed to bridge a large vertical distance by dividing it into smaller vertical distances, called steps...

 and catwalks in industrial settings, the added texture reduces the risk of slipping. For this reason diamond plate is frequently used on the interior of ambulances and on the footplates of firetrucks. Diamond plate can also be used decoratively, particularly highly polished aluminum variants.

Tata

Tata

- Companies :* Tata Group, India's largest business group and multinational company** List of entities associated with Tata Group- People :* Tata family, an influential family of India owning the Tata Group** Jamsetji Tata, known as the father of Indian industry...

market the plate as Durbar plate, Durbar Plate

"Diamond plate" can also refer to similar anti-slip textures.