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The short answer: to build a deck around an above ground pool, plan the size and height first, check local permit and barrier rules, then set footings around (never on) the pool, build a freestanding frame about 2 inches below the pool top rail, lay decking with a small gap at the pool wall, and finish with sturdy steps, railings and a self latching gate. A half deck on one side is the easiest first project.
Below is a step by step guide, followed by 12 above ground pool deck design ideas to help you choose a layout and finish. Always follow your pool manufacturer instructions and local building codes.
Five finishing buys for an above ground pool deck (we earn a small commission if you buy, at no cost to you):
- Confer pool steps: a safe in pool step system to pair with your deck.
- self locking gate latch: keeps the deck gate closed and secure.
- solar outdoor lights: light steps and edges with no wiring.
- Keter Westwood storage box: a home for floats, noodles and covers.
- 10 ft patio umbrella: shade for loungers on the deck.
Step 1: plan the size, height and layout
Measure the pool diameter and the height of the top rail. Decide between a half deck on one side, a wraparound deck or a deck with a lounge area. Sketch the layout with steps, gate and furniture, and leave at least 3 feet of walkway around the pool edge.
Step 2: check permits and barrier rules
Many areas need a permit for decks over a certain height and require a barrier with a self closing, self latching gate around pools. Check with your local building department and HOA before buying materials.
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Step 3: choose materials
Pressure treated lumber is the most affordable. Composite decking costs more but resists moisture and needs less upkeep. Use galvanized or stainless fasteners, joist hangers and post bases rated for ground contact.
Step 4: set footings and posts
Mark post locations around the pool, never resting on the pool wall or frame. Dig to your local frost depth, set concrete footings and use post bases. Keep posts plumb and allow space for the pool to flex.
Step 5: build a freestanding frame
Frame the deck so it is fully self supporting. Set the finished height about 2 inches below the pool top rail so the ledge stays accessible and the deck never sits on the pool. Use joists at 16 inches on center and check everything is level.
Step 6: install the decking
Lay boards from the pool edge out, leaving a small gap at the pool wall and between boards for drainage. Cut curves with a jigsaw by scribing the pool shape onto each board.
Step 7: add steps, railings and a gate
Build wide, shallow steps with handrails, add railings to the open sides and fit a lockable gate at the top of the steps. Pair the deck with in pool steps for easy, safe entry.
Step 8: finish and protect
Seal or stain wood decking, add lighting to steps and edges, and keep pool chemicals stored safely off the deck.
Above ground pool deck ideas
1. A half moon deck on one side
SaveThe easiest and most affordable option, with room for steps and two chairs.
Get the look: a half deck with wide steps.
2. A full wraparound deck
SaveA deck all the way around makes the pool feel built in.
Get the look: a wraparound deck with a gated entrance.
3. A two level deck with a lounge area
SaveA lower level for loungers and an upper level at pool height adds space.
Get the look: a two tier deck with built in steps.
4. A deck connected to the house
SaveLink the pool deck to the back door for easy flow.
Get the look: a walkway deck from the patio door.
Materials and finishes
5. Composite decking in gray
SaveComposite boards resist splinters and moisture.
Get the look: gray composite boards with white railings.
6. A warm stained wood deck
SaveA warm stain makes the pool area feel cozy and natural.
Get the look: cedar tone stain and black railings.
Thinking about a different pool? See our stock tank pool ideas.
7. Deck tiles over a patio
SaveInterlocking tiles turn a paved area next to the pool into a deck feel.
Get the look: interlocking deck tiles.
Comfort and safety
8. Wide steps with handrails
SaveWide, shallow steps are safer and double as seating.
Get the look: steps with sturdy handrails and solar lights.
9. A gated, fenced deck
SaveA tall railing and a self latching gate keep the pool secure.
Get the look: a gate with a self locking latch.
10. Built in storage
SaveBenches with lids or a deck box keep toys and covers tidy.
Get the look: a deck storage box.
11. Shade and lounging
SaveAn umbrella or pergola makes the deck usable all afternoon.
Get the look: a patio umbrella and two loungers.
12. Lights for evening swims
SaveString lights and solar post lights make the deck magical at night.
Get the look: solar string lights. For more pool ideas, see our small backyard pool ideas.
Common mistakes to avoid
Attaching the deck to the pool, skipping permits, building too high above the top rail, forgetting drainage gaps and leaving the steps without a gate are the most common problems.
Maintenance
Sweep often, wash the deck each spring, reseal wood every one to two years and check screws, railings and the gate latch at the start of every season.
Above ground pool steps on Amazon
Deck lighting on Amazon
Outdoor storage boxes on Amazon
Keep reading
Frequently asked questions
A half deck is often a two or three weekend project. A full wraparound deck can take several weeks for a DIYer.
Pressure treated wood is affordable. Composite costs more but resists moisture and needs less upkeep.
In most places yes, plus a self closing, self latching gate. Check your local rules.
About 2 inches below the top rail, so the deck never rests on the pool and the ledge stays usable.
About Shinku Studio: we write about calm, livable homes and backyards, with ideas you can actually use. This guide is general information; always follow your pool manufacturer and local building code.