Laying Katupal is not a complex, but time -consuming and responsible event. The quality of the work depends, including on the strength of the basis on which Katepal is laid. On a crate, you can, for example, lay a waterproof plywood. The moisture -repellent properties of the material are of paramount importance for the quality of work. Reason: the crate is made of wooden racks — and the tree is subject to deformation when drying out. True, waterproof plywood is a reasonable, but not the best choice. There is a more solid, but also more expensive material: OSP sheets, that is, oriented wood-based slab. It has a number of advantages over plywood: a more uniform structure and a continuous smooth surface.
