The supporting structure of the sides is steel racks from a profile of 60x30 mm, embedded into a concrete foundation to a depth of 400 mm. The board is made of laminated plywood (15 mm thick). The board is attached to the supporting racks. On top of the sides there is a handrail made of softwood timber. The height of the sides is 1270 mm. There are swing gates with a width of 1700 mm (at the request of the customer, the opening can be increased)