Abstract: Construction system for providing load support in the transportation of goods in containers having a floor and a ceiling. The system includes at least one supporting beam and at least two telescopic bar organs, each having a first end disposed on the floor of the container and a second end expandable to the ceiling of the container, pressing thereby against the floor and the ceiling. The bar organs extend through the at least one supporting beam at end areas, and include a plurality of longitudinally disposed holes for locking a bar organ to a supporting beam at a predetermined height by means of a latch pin.