Building a DIY small deck for an above ground pool transforms a simple backyard setup into a functional entertainment and relaxation zone. Instead of limiting your time to the water's edge, a compact deck provides a stable, comfortable surface for sunbathing, setting drinks, and easily accessing the pool for swims. This project is often more approachable than it appears, especially when designed with a small footprint and a focus on essential features.
Planning Your Deck's Size and Location
The success of your above ground pool deck starts with meticulous planning. You must first verify the pool's exact diameter and the height of its top rail, as these dimensions dictate the minimum size of the decking area. A small deck intended primarily for stepping in and out and for placing a few chairs will require less space than one designed for lounging. Crucially, the location you choose needs to be level, offer solid ground, and provide enough clearance for easy maintenance and safe entry and exit from the pool.
Key Dimensional Considerations
| Measurement | Purpose | Typical Minimum |
|---|---|---|
| Pool Diameter | Determines deck center point | Exact pool size |
| Access Width | Space for ladder and entry | 36-48 inches |
| Perimeter Space | Room for chairs and movement | 18-24 inches beyond deck |
Choosing Materials for Durability and Budget
Selecting the right materials is critical for a deck that can withstand the elements and the unique stresses of poolside use. Pressure-treated lumber remains a top choice for its balance of affordability and resistance to rot. For the primary deck boards, composite materials are an excellent alternative, as they resist splintering, fading, and the constant moisture from splashes without the need for annual staining.

Material Comparison for Above Ground Decks
- Pressure-Treated Wood: Cost-effective and strong, requires sealing.
- Composite Decking: Low maintenance and slip-resistant, higher initial cost.
- Concrete Pavers: Provides a solid, non-slip surface, can be arranged in patterns.
- Aluminum Decking: Lightweight and rust-proof, a premium option.
Step-by-Step Construction Process
Begin by assembling the support structure directly on top of the pool. Place 2x6 or 2x8 joists perpendicular to the pool walls, securing them firmly to the top rail with appropriate brackets. This creates a robust frame that distributes the weight of the deck and its occupants evenly across the pool's structure. Once the frame is locked in place and confirmed level, you can cut your chosen decking boards to size and fasten them securely to the joists, ensuring consistent gaps for drainage.
Critical Safety Checks During Build
- Verify all brackets are tightened to prevent shifting.
- Ensure deck boards are fastened tightly to avoid trips.
- Confirm the final surface is level from side to side.
- Check that the ladder area provides secure footing.
Enhancing Safety and Long-Term Maintenance
Safety must be a central focus of your design. Integrating features like grip tape on ladder rungs or installing non-slip mats on the deck surface significantly reduces the risk of accidents on wet wood. Building a small ledge into the deck's edge is also a smart move; it provides a convenient spot to place pool chemicals or a refreshing beverage without the items sliding into the water.
Maintaining your DIY deck is a straightforward process that ensures its longevity and appearance. Regularly rinse off chlorine residue and patio debris to prevent the wood from drying out or the composite from staining. Inspect the fasteners and support connections seasonally, tightening any loose hardware. By performing these simple tasks, you protect your investment and keep your above ground pool area safe and inviting for years to come.