20. Flap top, single pedestal, 40-60 inches wide Flat top, double pedestal Fixed bed, single or double pedestal - Suitable for salesmen or clerks whose work does not require the use of large-size records. -50 incheswide, suitable for workers using many papers. - 50-55 inches wide, for workers requiring the use of many papers and their storage. - 55-75 inches wide, for supervisors or clerks using large records or books. - 60 by 30 inch double pedestal- most popular size for general office machine. - Suitable for stenographers and clerks. - The fixed-bed desk is full height except for that portion immediately in front of the occupant,which is constructed at the conventional height, with an adjustable base for raising or lowering the typewriter or office machine.