Deck Footage Calculator

Notes on the Decking Calculator

Trex Hidden Fasteners are a great way to inconspicuously secure deck boards. 1 box is recommended for every 50 square feet and 1 bucket covers 500 square feet.

This form is for estimating purposes only. The user is responsible for all measurements, verifying these estimates, and any use, substitution, or modification of the quantities provided. Amerhart assumes no liability or responsibility for this estimate or any purchase resulting from the information provided.

How would you like to calculate?

Enter the deck square footage

What is the deck width?
What is the deck length?

Number of Boards Needed by Size

6" x 8' (Wood Deck Only)


6" x 10' (Wood Deck Only)


6" x 12'


6" x 16'


6" x 20'


Composite & Wood Deck Boards