With prices ranging from $5 to $8 per square foot, wool berber carpet is probably the most expensive kind you’ll find. Nylon berber is a bit cheaper, but it varies between $3 to $4 per square foot.

The cost to install carpet is about $6.35 per square foot. An entire carpet installation project costs between $775 and $2,650, ... with an average cost of about $5.75 per square foot. Berber.

Installing new carpet has an average cost of $1,250 for 140 square feet with nylon carpet. At the low end, that number drops to $650 but at the high end it can go up to nearly $2,000.