Deck Calculator

What is this calculator?

Estimate the total area of your deck and convert the result into square feet and square yards based on the dimensions you enter.

What is it used for?

Estimating the precise footprint and area of an outdoor deck structure to assist with ordering lumber and decking materials.

How to use this calculator

To perform the calculation, follow these precise steps:

1. Enter the Length.
2. Enter the Width.
3. Enter the Number of Decks (Quantity).
4. Click Calculate Result to compute the final value.

Formula / Calculation Method

The mathematical operation applied is:

Result = length*width*qty

Worked Example

Calculation scenario based on standard inputs:

Inputs:

• Length: 20 ft
• Width: 12 ft
• Quantity: 1

Calculated Result:

• Main Result: 240 ft²
• Total area: 240 ft²
• Square yards: 26.67 yd²
• Square meters: 22.3 m²

Understanding the Result

The output gives the exact square footage. You should always order an additional 10% to 15% of material to account for cut-offs and waste during the build.

Common Use Cases

• Ordering materials for a residential deck build.
• Cross-checking a contractor's material estimate.

Frequently asked questions