Forming lintels over openings with Lammi Partition Wall Blocks (VSK100) is straightforward using lintel blocks and a galvanised U-shaped opening profile. The lintel profile is cut so that it bears approximately 100 mm onto the support at each end. The reinforcement profile should be fitted so that the legs of the U-section point upwards. The lintel blocks rest on the opening profile, allowing the lintel to be formed quickly.