Starting the construction of the formwork, the boards are covered with smooth edges of the path, which are laid on the rib. Thick cardboard or plywood is used in curved areas. Above the ground level, such a formwork should rise by two to three centimeters. The boards are fixed with pegs driven into the ground, from the outside. Along the length of the path, through every meter and a half, the transverse boards of formwork are installed, which in height coincide with the side boards. To compensate for the expansion of concrete slabs during temperature fluctuations, the crossbars are ensured by the gap, in other cases, during frosts, the coating may be torn.