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. * B- Z; x" Y; k# e" H2 Q, @3 x3 J) J. I3 {
This is just rough idea.