Every swimming pool needs a pool deck as it provides practical needs as well as an attractive appearance and protection. It is important to have the exact square measurements of your deck space before beginning any installation or renovation initiative as it aids in material forecasting and planning.

How to Calculate Pool Deck Square Footage?

The overall deck dimensions are determined by the pool shape and the surrounding deck space. The calculation generally follows these steps:

• Determine the full size of the deck space which encompasses the swimming pool area.
• Calculate the pool area
• Subtract the pool area measurement from the complete deck area dimensions

Step 1: Calculate the Total Deck Area (Including the Pool)

The total deck area is measured as a rectangle that encompasses the entire pool and deck space.

Formula (for Rectangular Deck):

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

If your pool and deck area form a circular shape, use the formula:

$\text{Total Deck Area} = \pi \times \left(\frac{\text{Total Diameter}}{2}\right)^2$

Step 2: Calculate the Pool Area

Now, calculate the pool area based on its shape.

Formula for Rectangular Pool:

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

For a circular pool, use:

$\text{Pool Area} = \pi \times \left(\frac{\text{Pool Diameter}}{2}\right)^2$

Step 3: Calculate the Pool Deck Square Footage

The final step is to subtract the pool area from the total deck area to get the actual deck square footage.

Formula:

$\text{Deck Area} = \text{Total Deck Area} - \text{Pool Area}$

Example Calculation

Given Data (Rectangular Pool & Deck):

• Pool Length: 30 ft
• Pool Width: 15 ft
• Total Deck Length (including pool): 40 ft
• Total Deck Width (including pool): 25 ft

Step 1: Calculate Total Deck Area

$\text{Total Deck Area} = 40 \times 25 = 1000 \text{ ft}^2$

Step 2: Calculate Pool Area

$\text{Pool Area} = 30 \times 15 = 450 \text{ ft}^2$

Step 3: Calculate Deck Area

$\text{Deck Area} = 1000 - 450 = 550 \text{ ft}^2$

Final Output for the Example:

• Total Deck Area (including pool): 1000 ft²
• Pool Area: 450 ft²
• Pool Deck Square Footage: 550 ft²

Frequently Asked Questions (FAQs)

1. How far around my pool for a deck?

For walking space and seating, most pool decks extend 3–5 feet or more beyond the edge of the pool.

2. Is this calculator applicable to irregular-shaped pools?

Yes! Divide the pool deck into smaller rectangles or circles, find the area for each, and add them all up.

3. What is the best material for a pool deck?

• Concrete: Low cost and long-lasting
• Pavers: Chic and non-slip
• Wood Decking: Natural but needs maintenance

4. How do I know how much my pool deck would cost?

The cost per square foot of the decking material multis by the deck square footage.