Normally, stairway $5.00 per step, floor $5.00 per sqaure yard. As the carpeter itself depening the quality you like. Also, for the floor footage, you need add roughly 10% extra as you need to cut and through some carpeter.9 _# q" {( w+ c9 i, C' C
7 w# U$ a1 Z: E( X8 ?* v( i# XThis is just rough idea.