Welcome to FSF • Formstahl Frankenberg. We develop and produce massive special products that allow the building owner and architect a high degree of creativity and individuality in the planning and execution of construction projects. Using innovative lattice girders, our special products can be adapted to almost all static requirements. Our products meet all requirements that result from the revised reinforced concrete DIN 1045. Especially with regard to the ironing of connection joints. Our specialities: Lintels , with and without insulation, in different contours (segment, basket and round arches), with verified supporting structures and with all cross-section dimensions. Roller blind boxes , self-supporting or in a load-bearing design, in perfect combination with our contour lintels, in all dimensions and structural variants. Hand-assembled ceilings , with the lowest dead weight and for the largest spans, with which vaults such as Prussian caps, barrel vaults or segment vaults can be easily reproduced and with which ceilings can also be stored multi-axially tensioned in the renovation of buildings. Cross ribs can be converted into main ribs by means of special bracing. Prefabricated structural steel in rectangular and round designs Special elements: solid roof, tile panels, external venetian blind boxes (with integrated supporting structure), gabions Vault ceiling renovation with preservation of the appearance and increased load capacity e-mail • Products • Inquiry / brochures / order • Contact • Photo gallery • Home