Decking Calculator

Efficiently estimate materials needed for your decking project. Ideal for homeowners and construction professionals.

Square Footage:
Size of decking boards:
Square Footage:
Material estimations:
Number of boards:
Fasteners Used:
Number of screw/nails:
Cost estimations:
Price per board:
Price for all board:
Cost of fasteners :
Total Cost :

Decking calculators have revolutionized the way homeowners plan and execute their decking projects. Whether you're a seasoned DIY enthusiast or a first-time homeowner looking to enhance your outdoor space, utilizing a decking calculator can streamline the process and ensure accurate estimates for materials and costs.

Building a deck involves various considerations, including material selection, dimensions, and budget constraints. A slight miscalculation can lead to significant delays, unnecessary expenses, or even an incomplete project. Decking calculators provide an efficient solution by accurately estimating the quantity of materials required based on specific project parameters.

Decking Equation Formula

The decking equation formula helps calculate the number of decking boards needed for a project based on the dimensions of the deck and the width of the boards. The formula is:

Number of Decking Boards = Total Deck Area / Width of Decking Boards


Let's say we're building a deck with the following dimensions:

Length: 12 feet
Width: 8 feet
And we're using decking boards that are 6 inches wide.

First, we calculate the total deck area:

Total Deck Area = Length × Width

Total Deck Area = 12 feet × 8 feet = 96 square feet

Now, we can use the formula to find the number of decking boards needed:

Number of Decking Boards = 96 square feet / 6 inches

Number of Decking Boards = 96 square feet / 0.5 feet

Number of Decking Boards = 192 boards

So, for this example, we would need 192 decking boards to cover the entire deck area. Keep in mind that this calculation assumes no waste or additional factors such as spacing between boards. It's always a good idea to add a buffer for waste and adjust the calculation accordingly.