A washbasin that you purchase with our cabinets should be placed on the cabinet only with the use of sanitary silicone. There is no need for additional mounting of the sink to the wall. The silicone is placed on the edges of the cabinet, then a washbasin is put in place. The excess of the silicone is then removed using a special tool. This joint will prevent the sink from moving and protect the cabinet edges from moisture. A detailed method of assembling the sink is presented in our instructional video.