serves as storage of paddy and other family possessions. Sometimes the sadau has a sort of gallery from which the life in the ruai can be observed. The pigs and chicken live underneath the house between the stilts. A basic design of the inner side of each family house consists of an open room (bilek), a covered gallery (ruai), an open verandah (tanju) and a loft (sadau). The covered gallery has three areas called tempuan (highway), the lower ruai and the upper sitting area (pantal) after which is the open verandah. An upper palace (meligai) is built dedicated for children especially if they are raised as princess or prince (anak umbong) with servants to attend to them and thus protected from encounters with unsolicited suitors especially for the maidens in view of the "ngayap" (literally dating) culture. An opening between family rooms is normally provided to allow direct communication and easy sharing between families. The backside of a longhouse can also have a smaller open verandah called 'pelaboh' built. Due to its design, the longhouse is fit for residency, accommodation and a place of worship. The front side of each longhouse shall be constructed towards the sunrise (east) and hence its backside is on the sunset. This provides enough sunlight for drying activities at the open verandah and to the inner side of the longhouse. The Iban normally design a window on the roof of each family room which is to be opened during daylight to allow sunlight coming in and thus provides sunlight into the inner side of the family room. Another key factor in determining the right location for building a longhouse is the source of water, either from a river or a natural source of water (mata ai) if it is located on a hill or mount. The access to the sunrise is the overriding factor over the easy access to the river bank. The most ideal orientation of a longhouse is thus facing the sunrise and the river bank. One more aspect considered when arranging the families in a row along the longhouse is that senior families will be arranged in descending order from the main central post. However, the families on the right hand side will be more senior than the families on the left-hand side. This is to follow the arrangement of the family arrangement in the Sengalang Burong's longhouse where Ketupong's room is