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. + x# S7 v6 T7 j# R* C& r" \0 w! E+ W8 a
This is just rough idea.