Drying of wood or timber reduces its moisture content. Traditionally wood was dried using air but is also dried using a kiln. When a Kiln is used for drying purpose, the resulting product is known as kiln-dried timber or lumber. This method speeds up the drying process. When timber is dried in a kiln, the result is a higher quality product. Any infestation of insects is also eliminated. As this is a controlled process, it is cost effective and does not display any distortion or drying stresses. Kiln dried timber is very dry and stable and therefore recommended for all kind of building projects.