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.1 S0 Z1 t) R& D6 ^" {. B0 k
6 C; T8 U1 i0 q4 F
This is just rough idea.