The Billy Oh Composers Cabin Summerhouse is a unique design which gives extra space to relax... Windows. 2 Opening Front Windows Height 93.5cm Width 48cm. 2 Fixed Side Windows Height 93.5cm Width 78cm. Style & Durability. The tongue & groove cladding adds to the overall aesthetic appeal of the design as well as providing superb durability. An investment designed for the long term. Natural Materials. A great feature of the design is that tongue & groove board is used throughout the building s construction. Effective Working Space. This superb summerhouse has been designed to provide a relaxtion space or a place to store all of your garden essentials. The building also provides a generous ridge height for the tallest of people & is constructed using robust framing for additional rigidity. Remember a great feature of this shed is that the windows can be placed on either side of the building to suit your individual requirements.. What s included. Side, Roof, Door, Back and