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. : p8 |* ^7 H+ n2 h2 @4 z: ~ 6 }& G m3 d& u4 ~This is just rough idea.