DecentraLager is a project that aims to reintegrate hidden stone products from the warehouses of Swiss SMEs into the building materials cycle. The DecentraLager team curates the residual and demolition materials and offers them back to processors and planners. The platform and know-how serve as a catalyst for anonymizing trade and ensuring material quality. In this way, construction companies benefit from the project by gaining access to “regional” stone products without any additional effort. They continue to obtain their material in the usual way. At the same time, they can optimize their storage space.