Normally, stairway $5.00 per step, floor $5.00 per sqaure yard. As the carpeter itself depening the quality you like. Also, for the floor footage, you need add roughly 10% extra as you need to cut and through some carpeter.4 }$ S; w9 w# K9 x3 J/ t5 D S8 P
1 M0 X1 p: t/ f) m9 P0 b: R
This is just rough idea.