Question: how much does it cost to build a deck on a lake?
Answer: Building a boat dock costs an average of $14,823 with a typical range for $3,173 and $26,474. The average pier runs $100 per linear foot or between $15 and $40 per square foot. Prefabricated or assembled types run as low as $1,000 while high-quality permanent ones run between $50,000 and $75,000.