Carrom boards used in tournaments are produced with a separate layer of rubber sheet. The material is usually thinner than the board itself and is covered with a thin layer of rubber sheet. Usually, tournament boards are made up of hardwood and have dimensions of 29x29."
Most of the time, tournament boards are made up of hardwood, sometimes teak wood, and dimensions of 29x29. The surface is usually smooth and polished to ensure that the ball is easily rolled on top of it.