The big advantage of FRISOKIT is that our buildings are made of cold-formed steel, so they are lighter without sacrificing strength. More precisely, they are 30% lighter than other conventional steel structures, which means considerable savings for you on your concrete foundation slab. We recommend a concrete slab between 15 and 20 cm thick, with only the long sides possibly having to be reinforced. Of course, the subsurface plays an important role. We always provide you with a foundation plan with the exact dimensions. Always consult your groundworker or architect to assess the situation on site.