Even if the popularity of wood is subject to certain fluctuations, the sustainable material is basically considered timeless. In addition to its homely appearance, it is above all the uniqueness that makes wood so special - each of our wood parallel slide & tilt doors is also a real one-off. The choice of the respective type of wood plays a major role, because each has its own character. Important to know: softwoods such as pine and spruce have better insulation values, while hardwood such as oak offers more stability and break-in protection. In addition, you should regularly maintain and apply new varnish to wooden frames, this will make them just as good as other materials in terms of durability.