Normally, stairway $5.00 per step, floor $5.00 per sqaure yard. As the carpeter itself depening the quality you like. Also, for the floor footage, you need add roughly 10% extra as you need to cut and through some carpeter.$ P+ l+ E0 c/ U! d; I
o8 j1 {# F4 s! c0 Q* F
This is just rough idea.