The main objective of LASTEICON is to eliminate the use of excessive amount of stiffener plates and welding in steel joints, using laser cu[ng technology (LCT). The project will notably enhance the economy and sustainability of the fabrication as well as the aesthetic of any type of steel joints. Major focus is given to I- beam-to-CHS-column connections to promote hollow sections, since their excellent structural properties combined with their aesthetic appeal will lead decision makers (architects, building owners) to use more steel products in the building construction sector. Extendibility of the solution to other construction applications will be investigated with reference to steel truss girders.