This Architectural Drawing is AutoCAD 2d drawing of Wash basin plan and elevation cad blocks in AutoCAD, dwg file. Sinks are common in kitchens in the United Kingdom, and homemakers use them to clean soiled utensils. Sinks, like basins, have a water-stopper and can store a few litres of water. Basins, on the other hand, come in a variety of forms, including circular and square.