Office seating should provide good back support and have the ability to be easily adjustable to the correct working height. It is important that elbows sit at the same height as the keyboard and feet are placed comfortably, flat on the floor. After the common cold, backache is the greatest cause of absenteeism in the UK and a major cause is incorrect posture and more importantly, unsuitable office workplace seating. The cost of one week's salary will often cover the cost of high grade seating.