An important consideration in plant layout design is the human comfort. This should be maximized while minimizing at the same time the distance between the facilities. The human factors which need attention in developing machining facilities include work environment with human body posture, stress and other physiological capacities of the work force. Successfully achieving such human factors enables good working conditions which are conducive for reduction in injuries, effective and highly productive environment and reduced fatigue. It is found that these goals are fairly well achieved by using SLP that takes into consideration the human factors [11]. The SLP has been found to improve spatial distances between facilities (machines, between workstations and between departments) and also improve the flow of material through the plant. Thus cost of material handling is reduced significantly [12]. As a consequence, less material handling time is needed, workers move faster and the overall productivity increases.