Tiger Sheds 6’x4′ Timber Pressure Treated Penthouse Shed Fully Clad Tongue & Groove. Soaked with Tanalith, the cutting-edge wood defender, the shed is fully armored against any kind of decomposition and bug infestation, and boasts a significantly prolonged existence, assured for many seasons. 6’x4′ Tiger Elite Pressure Treated Pent Shed