How Many Deck Boards Do I Need?

It is easy to calculate how many boards you need. Just follow these simple steps

Step:1 Calculate Deck Area

To calculate the area of a deck, measure the length and width of the deck in the same units (e.g., meters, feet) and then multiply the length by the width. 

Use the formula for the area of a rectangle:

$\text{Deck Area}=\text{Length}\times \text{Width}$

Step:2 Calculate board size

Calculating the board size is as easy as the deck; you simply multiply the length and width of the board

Use the formula for the area of a board:

$\text{Board Area}=\text{Length}\times \text{Width}$

Step:3 Calculate Number of boards needed

To calculate the number of boards needed for your deck, Divide the total deck area by the area covered by one board.

Here's the formula:

$\text{Number of Boards}=\frac{\text{Deck Area}}{\text{Board Area}}$

Example Calculation

Let's say:

• Your deck area is 300 square feet.
• Each board covers an area of 5 square feet.

$\text{Number of Boards}=\frac{\text{300sq ft }}{\text{5sq ft/board}}$

Number of Boards = 60

So, you would need approximately 60 boards to cover a deck area of 300 square feet, assuming each board covers 5 square feet.