Enter the total cost to build the deck and the total area of the deck into the calculator to determine the deck cost per square foot.

Deck Cost Per Square Foot Formula

The following equation is used to calculate the Deck Cost Per Square Foot.


  • Where DCSF is the deck cost per square foot ($/ft^2)
  • TCD is the total deck cost ($)
  • TAD is the total deck area (ft^2)

To calculate the deck cost per square foot, simply divide the cost of the deck (material and labor) and divide by the total area of the deck.

What is the Average Deck Cost Per Square Foot?

The average cost of building a deck per square foot ranges from $20 to $50.

Factors That Influence The Cost Of A Deck:

The factors that influence the cost of a deck include the size of the deck, the material used for its construction, and whether or not any special features are included.

Your available space should determine the size of your deck. The materials you choose for its construction will affect the durability and longevity of the deck.

In addition to size and design, factors such as your geographic location and local building code requirements can also influence your overall costs.

For example, suppose you live in an area with harsh winters. In that case, you may want to pay extra for materials that are guaranteed to perform well in cold temperatures or include additional details like insulation to protect against snow loads.

Similarly, if you live in an area with extreme heat or humidity, you may want to consider paying for additional details like flooring that resists warping.