Precast concrete walls are concrete walls made by the factory which are then installed or installed in the field after being old enough for construction. Precast concrete walls are an innovative product of sturdy building materials and materials that are environmentally friendly and energy efficient. This is based on various obstacles encountered in the use of bricks. It is difficult to get raw materials for red bricks, namely clay, in addition to the inefficiency of time and labor required in the building construction process.