Pool Deck Calculator

Free pool deck calculator

As an Amazon Associate I earn from qualifying purchases.

Decking area, boards, and cost for a deck around an above-ground pool.

Worked example

With these inputs:

ResultValue
Pool deck cost estimate$10,866 – $14,818
Deck area (ring)283 sq ft
Deck boards (16 ft)45 boards
Railing needed68.5 ft
Cost per sq ft$43.63
Pool perimeter75.4 ft
Deck width around pool6 ft
Wrap coverage50%
Rows of decking (across width)13
Linear feet incl. 20% curved-cut waste708.7 ft
Decking + framing$7,358
Railing (outer edge + returns)$3,770
Stairs & self-closing gate$1,220
Pool-side edge37.7 ft

Pool decks carry extra code requirements: a self-closing, self-latching gate, guardrail everywhere the deck is more than 30 inches above grade, and no climbable horizontal rails. Never fasten framing to the pool wall — the deck must be free-standing with its own posts and footings.

How it works

Enter your pool diameter and how wide you want the surrounding deck, and this calculator returns the ring area, board and framing quantities, railing footage, and a cost range.

Frequently asked questions

How much does a deck around an above ground pool cost?

A half-wrap 6 ft wide deck around a 24 ft round pool covers about 280 square feet and costs roughly $9,000-$13,000 in pressure-treated or $16,000-$22,000 in composite, including railing, stairs, and a code gate.

How wide should a pool deck be?

Four feet is the practical minimum for walking around the pool. Six feet fits a lounge chair, and eight to ten feet allows a seating group and a table on the wide side.

Can I attach a deck to my above ground pool?

No. Above-ground pool walls carry no structural load. The deck must stand on its own posts and footings with a small gap to the pool wall so the pool can flex when filled.

Does a pool deck need a railing?

Yes, wherever the walking surface is more than 30 inches above grade — and pool codes usually require a self-closing, self-latching gate at the top of any stair, plus no climbable horizontal members.

How many deck boards do I need for a round pool deck?

Curved layouts waste 15-25% more than a rectangle. For a 280 square foot half-wrap deck, plan on roughly 700 linear feet (44 boards at 16 ft) with a 20% waste allowance.

Need the whole roof at once? The free roofing calculator works out roof area, squares, shingle bundles, underlayment, drip edge, ridge cap and installed cost from one set of measurements.