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.3 V1 y. N/ a: E0 s, v
7 Q. L% p' t# D% F5 P
This is just rough idea.