Composite shower trays are a popular choice in modern bathrooms. Only 20 mm high allows abolish architectural barriers, gently marks the shower area and combined with a light weight compared to similar products on the market makes installation much easier. The shower trays can be installed both on the tiles and flush with the tiles. Composite shower trays must be evenlye supported throughout, to avoid deformation or cracking. Using an installation kit designed specifically for composite shower trays Arda i Lavano can increase installation efficiency, provide solid support and minimize the risk of installation problems. However, it is advisable to read the manufacturer's instructions and follow all safety recommendations and building standards before installation.