Planex Horizontal Plan Cabinets are avail in in 5 drawer and 10 drawer options from A0 to A1 sizes. They are designed to hold either a large variety or large quantity of material as 5 drawer otions have a deep 50mm drawer and 10 drawer units have a 25mm depth. Thus the outer cabinet is the same size for both. They feature beautifully smooth mechanisms and elegant flush drawer fronts with full width drawer pulls.