What is standard size carrom board?

A standard size carrom board is usually 29 inches square and is made of wood. It has four pockets at each corner and a playing surface that is smooth and polished. The playing surface is divided into a series of square sections with a circle at the center, known as the "queen" or "nis". The thickness of the board can range from 4 mm to 6 mm. The coins used in a carrom board are usually made of wood or plastic and have a diameter of around 3 cm. The striker used to shoot the coins is usually made of wood, plastic, or ivory, and has a diameter of around 4 cm. Standard size carrom boards are used in official tournaments and competitive play.