In this research, 41.9% of students had complaint of fatigue in their legs, with regard to 34(cm), different of the height of students and the use of the desk and benches with the same height, it could be expected that feeling early fatigue and predictable in 48.3% of students. Similarly, with regard to (33cm), different of the sitting height of students and the use of average 130.5 cm installation blackboard which is compared to 178.5 cm proportional standards, 24.6% of students have been reported fatigue feeling in their neck area.