The workplace heights for leg clearance (A), keyboard home row location (B), and the center of a VDU screen (C) are given for a seated workplace. The other workplace dimensions are similar to those for a seated workplace without a footrest (see Figure llA-4). A VDU with a keyboard separate from the display screen is shown since this arrangement permits optimal workplace design. If the VDU keyboard and screen are not separate, the table height should be in the 6 1-cm (26-28-in.) range. When frequent work at the VDU console is required, a seated operation is preferable.