The purpose of a stainless steel sink grid is to protect the surface of the sink from scratches from knives and utensils and to allow dishes, glassware and utensils to drip dry into the sink. Sink grids also free counter space usually reserved for a drainer tray and rack.
Sink grids are also handy for rinsing fruits, vegetables and chickens. Sink grids usually have plastic or rubber feet that elevate the grid a short distance from the bottom of the sink to allow air to circulate. Grids are available in standard geometric shapes and sizes to fit most sinks, or they can be custom fit for uniquely shaped sinks. Universal grids slide in and out to fit a variety of sink sizes and shapes.