XC is an innovative prefabricated construction product combining excellent material properties of both wood and concrete. XC stands for X-Lam and Concrete and is especially applicable for construction with wide spans and meets high requests on both load bearing capacity and serviceability. In addidion accoustic insoulation is improved compared to light weight wooden construction systems. The quality controlled prefabrication enables short assembly and construction time and reduces noise and mess as well as on-site traffic. XC is a standardized industrial building product provided by MMK, a Joint-Venture of Mayr-Melnhof Holz and Kirchdorfer Fertigteile.