The standard shed range comes with dip treated specially designed 12 mm rebated shiplap cladding as standard which protects the sheds externals from mold. We do recommend further protection with a comprehensive treatment (wax or oiled based) as this dip-treatment is only weather-proof. The wooden framework and cladding are treated free of charge in our manufacturing depot. Classic Sheds are ideal for: sheds on budget, general purpose, medium duty, outdoor storage. As these sheds are made from a 38 mm x 50 mm planed framework, they are extremely durable and sturdy, and with yearly maintenance to prevent rot and decay they will last for years! Altogether, a standard shed is an excellent and affordable solution for storage of your garden furniture and tools.