Normally, stairway $5.00 per step, floor $5.00 per sqaure yard. As the carpeter itself depening the quality you like. Also, for the floor footage, you need add roughly 10% extra as you need to cut and through some carpeter. " [$ |8 W1 D9 ]; t* n; a9 j- ` \4 w0 O; _1 Q
This is just rough idea.