At the opposite end of the panel, centre two brackets 50mm and 550mm from the edge, securing with 20mm button head screws. At the back, secure a bracket 30mm from the edge and 275mm from the end. When securing brackets, ensure they’re positioned with the backs facing inwards to be flush with the cabinet. Enlist a second pair of hands to lift the panel, positioning it with the brackets around the assembled cabinet.
Tip: If the desk is positioned against the wall, the top won’t slip back. But if it needs more support, screw the brackets into the cabinet by drilling through the holes in the side and back brackets with a 3mm drill bit, securing with 8G x 12mm self-tapping sheet metal screws.