Normally, stairway $5.00 per step, floor $5.00 per sqaure yard. As the carpeter itself depening the quality you like. Also, for the floor footage, you need add roughly 10% extra as you need to cut and through some carpeter. + A+ d0 I4 f N5 [% A8 N; u 9 m3 B8 ~. j& }! e+ @" ~+ oThis is just rough idea.