Primary Wave Desk   [Back to : Desking] To view details, please select a product. Primary Double Wave Desks As part of the Primary Wave range, the Double wave options have the increased work surface at both sides and are therefore unhanded. Available in 1800mm or 1600mm lengths these are ideal for areas, which require constant reconfiguration. Primary Single Wave Desks Ideal where space is at a premium, Primary Single Waves are available in either right or left hand options. The desk top is increased from 800mm to 950mm to accommodate computers users over the length of the desk 1800, 1600 or 1400mm.