String - Home Office Shelving System in OakString System is perfect for creating your ideal office space in one simple unit. With a range of Desks, shelving, cabinets and more, you're sure to get the best from String. Completely customisable to suit your style and needs, string allows you to choose from a range of colours as well as designing the entire composition yourself. Crafted with a striking black metal framework, warm Oak shelving and drawers, and two sleek blackstained ash shelves.