Trexus Delta Office Shelving System. This stylish and affordable shelving system has a true delta shaped upright to enhance its looks and increase its strength. Available in two depths, standard and extra. Extra gives you the enhanced features for adding filing accessories. Each unit comes complete with six shelves. Shelves can be clipped for easy or quick assembly or bolted for added strength (all fittings supplied). All units are covered with Activecoat - a hard wearing anti-bacterial powder coating, making them suitable for all environments. Uniform distributed weight per shelf is 80kg. White Extension Bay. Standard Depth. WxDxH: 1000x300x1880mm.