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 f: M. s1 i4 k8 t9 X: q, e1 u# F @/ Y5 q! {' [
This is just rough idea.