Beams The lightweight steel fabrication includesa 100mm wide top flange which eliminates the necessity for a plywood infill, so cutting down maintenance costs. Heavy duty pressings are fitted to the beam ends ensuring adequate protection against site abuse. These incorporate a tongue location for the drophead.Panel retaining lugs have a tapered wedge action for quick positive location of panels, ensuring tight joints and minimum grout loss. When beams are in the horizontal position they cannot be accidentally dislodged.