The price of an installation will vary depending on a number of factors, including the square footage of the area to be installed, the accessibility of the site, and the type of existing material/excavation. In general, most installations will fall within the $2.5-$3.5 per square foot range. However, there can be significant variation in price based on these factors. For example, a large installation with difficult access may cost more per square foot than a smaller installation with easy access. Similarly, an installation that requires excavation and/or removal of existing material may also cost more than one that does not. As such, it is important to consult with a professional to get an accurate estimate of the cost of your specific installation.