A solid timber construction system, it has no glues or nails. Fabricated from softwood timber posts connected with hardwood timber dowels which have a moisture content lower than the posts; over time the dowels expand locking the timber together.
This relatively simple method of construction does not use glues or nails and can be used to make beautiful, low carbon, healthy buildings that are quick and easy to build. With Brettstapel normally manufactured entirely out of untreated timber, it is important to stress that glue is not necessary. The exclusion of glue and nails (which are seen in other solid timber systems) means a healthier indoor air quality can be achieved, while the timber itself locks in vast amounts of carbon dioxide without emitting harmful toxins found in other materials.
100% timber (softwood boards with hardwood dowels)