Installing an above ground pool is exciting. But before the fun starts, you need to get the foundation right. Strong and level above ground pool bases are the key to keeping your pool safe, stable, and long-lasting.
This guide covers the most popular base ideas for above ground pools. We’ll guide you through proper ground preparation. You’ll also get expert advice to help you choose the best option for your backyard.
Why the Pool Base Is So Important
Your swimming pool base is more than just what the pool sits on. It supports the structure, protects the liner, and helps keep the water level balanced. Without a proper pool foundation, you could face issues like:
- Liner tears or damage
- Uneven water levels
- Pool shifting or sinking.
- Shorter pool lifespan
Whether you’re setting up an Intex pool or a framed steel-wall model, a well-prepared foundation is essential. It’s the key to long-term success with any above ground pool.
Ground Prep for Above Ground Pool Installations
One of the most common mistakes pool owners make is skipping proper above ground pool base preparation. Prepping the ground the right way ensures your pool sits flat, drains properly, and stays protected from damage.
Step-by-Step Guide to Prep Ground for Above Ground Pool
- Choose the location:
Pick a sunny, level area away from trees, stumps, and underground pipes. - Clear the area:
Remove all grass, roots, rocks, and debris from the site.
- Level the ground:
Use a shovel or sod cutter to create a flat surface. A level pool is a safe pool.
- Compact the soil:
Use a tamper or plate compactor to make the ground firm and solid.
- Add your base material:
Depending on the base type (sand, foam, stone), install the material evenly.
- Protective layer (optional but recommended):
Add mats for under swimming pools or a pool liner pad to shield the bottom from sharp objects or shifting.
Proper prep ground for above ground pool setup is the first step to a stable and long-lasting pool.
Best Base for Above Ground Pool: Top 5 Options
Let’s look at the most common base for above ground swimming pool options, along with the pros and cons of each.
1. Mason Sand
One of the most popular above ground pool bases materials, mason sand, is soft, smooth, and easy to spread. It creates a cushion between the ground and the pool liner.
Pros:
- Affordable and widely available
- Easy to work with
- Soft on feet
Cons:
- Can shift or erode over time
- Needs compacting and leveling
- May wash away in heavy rain
Tip: Use mason sand for the pool base, not play sand or construction sand, for the best results.
2. Foam Sheets or Pads
Foam is a premium pool base option that provides a soft, comfortable surface under your pool liner.
Pros:
- Excellent liner protection
- Soft underfoot
- Adds insulation
Cons:
- Costs more than sand
- It may require cutting and fitting.
- Needs a level surface underneath
Pre-cut pads like Armor Shield or Gorilla Pad are great pads for above ground pools that need extra protection.
3. Concrete Slab
If you want the most solid and permanent foundation for above ground pool, a concrete slab is the way to go.
Pros:
- Extremely durable and stable
- Will not shift or erode
- Supports heavy pool models
Cons:
- More expensive
- Requires professional installation
- Not easily changed or removed
Concrete is often used for permanent setups or when connecting the above ground pool to deck features.
4. Crushed Stone or Gravel
Crushed stone makes a solid above ground swimming pool base, especially in wet or uneven yards.
Pros:
- Great drainage
- Holds its shape
- Affordable and widely available
Cons:
- Needs a protective layer (like a foam pad)
- It can damage the liner if not covered properly.
- Requires careful leveling
A crushed stone base with foam sheets is a great DIY solution. It works especially well for Florida and other humid states.
5. Pre-Made Pool Pads
These pads are made from dense material and come pre-cut to match common pool sizes. They make above ground pool bases faster and easier.
Pros:
- Quick and simple to install
- Designed for pool sizes
- Extra liner protection
Cons:
- More expensive than sand or gravel
- Not ideal for uneven or sloped yards
If you’re short on time or tools, pre-made mats for under swimming pools can help speed up installation.
Best Above Ground Pool Bases for Florida Homes
Florida’s homeowners deal with sandy soil, heavy rain, and high humidity. Here’s what to consider when choosing a pool base in Florida:
- Avoid using sand by itself; combine it with a pad or foam to reduce erosion.
- Crushed stone with a protective foam or pad layer is highly recommended.
- For long-term setups, consider a concrete slab, especially if installing an above ground pool to deck connection.
- Install drainage solutions to handle rainfall and protect the pool foundation from water damage.
The best base for above ground pool in Florida is one that combines strength, drainage, and liner protection.
Above Ground Pool Base Ideas for DIY Installers
Looking for above ground pool bases ideas you can do yourself? Here are some smart combinations:
- Foam sheets on top of mason sand – soft, smooth, and affordable
- Crushed gravel topped with a Gorilla Pad – great for drainage and protection
- Concrete slab with pre-cut foam liner – durable and ideal for permanent setups
- Sand base with interlocking foam tiles – easy to build and level
These combinations make for the best above ground pool bases, depending on your goals and budget.
Common Mistakes to Avoid
Avoid these mistakes when planning your above ground pool bases:
- Skipping the leveling step
- Installing on grass or soft soil
- Using beach sand or play sand
- Not compacting the base.
- Forgetting a protective mat or liner pad
- Ignoring water drainage or soil erosion issues
Correct above ground pool base preparation protects your investment and makes swimming more enjoyable.
Maintenance Tips for Your Pool Base
Once your pool is up and running, it’s important to take care of the base:
- Re-check for level each season
- Watch for erosion or sinking areas
- Keep the edges clean and free of weeds
- Replace worn or torn liners with the best pool liners you can afford
- If using sand, check for washouts after storms
Routine checks will help your base for above ground pool stay strong and steady.
Ready to Build the Perfect Pool Base?
At Pools-Now, we specialize in above ground pool fittings and ground prep. We also offer full backyard pool solutions in Florida. Whether it’s a seasonal setup or a custom pool with a deck, our expert team can help. We’ll guide you every step.
- Free site assessments
- Customized base recommendations
- Fast and professional installation
- Serving all of Florida
Get in touch today to start your above ground pool project correctly. Let us help you choose the best base for your above ground pool — so you can swim safer, longer, and worry-free.
Frequently Asked Questions (FAQs)
Which type of base works best for supporting an above ground pool?
The best base depends on your yard, budget, and climate. Common choices include mason sand, foam pads, crushed stone, and concrete. Most homeowners use mason sand with a liner pad. This combo gives a nice balance of comfort, cost, and protection.
Can I put an above ground pool directly on grass?
No, it’s not recommended. Grass can die, rot, and cause uneven ground. Always remove grass and level the area before installing your above ground swimming pool base to avoid long-term issues.
Is Mason Sand or Play Sand better for a pool base?
Mason sand is better. It’s smoother, easier to level, and compacts well. Play sand has rougher particles and may not provide a stable pool foundation.
Do I need a pad under my above ground pool?
Yes, using pads for above ground pools helps protect the liner from punctures, roots, and sharp objects. Pads like Gorilla Pad or Armor Shield are great options and can extend your pool’s life.
Can I build a DIY above ground pool base?
Absolutely. Many pool owners choose a DIY above ground pool base using sand, gravel, or foam. Just make sure to follow proper ground prep guidelines. Always level and compact the area before installing your above ground pool.
Final Thoughts
There’s no single best solution for every yard. The best foundation for above ground pool setups depends on your soil, climate, pool type, and long-term plans. You can use foam mats, sand, gravel, or concrete under your pool. Pick the strong one that keeps the pool safe and is easy to set up.
If you’re in Florida and need expert help with planning, ground prep for above ground pool, or full pool installation, our team is here to assist. We can help you choose the right base for your pool and make sure your backyard is summer-ready.
