Choosing an inground trampoline installation over a standard above-ground setup offers a modern look, safer access, and a permanent backyard upgrade. But unlike assembling a trampoline on the surface, installing one in the ground requires careful planning, site prep, and attention to airflow and drainage.
In this detailed guide, you’ll learn how to install an inground trampoline properly — with tips on digging, drainage, framing, and more. Whether you’re a DIY enthusiast or planning to hire professionals, this resource will help you make the right decisions.
Why Install an Inground Trampoline?
Inground trampolines are flush with your lawn, which makes them:
- Safer (no high falls or ladders)
- Easier to access for children
- More visually appealing
- Less likely to tip over or blow away in strong wind
Many parents choose this option as the best inground trampoline solution for long-term backyard fun.
Step 1: Choosing the Right Spot
The first step in backyard trampoline installation is finding a flat, open area free from tree roots, utility lines, or low-hanging branches.
Make sure to:
- Allow 3 feet of clearance around the trampoline
- Avoid placing it near fences or hard surfaces
- Check underground before digging (use 811 service if in the U.S.)
Step 2: Planning the Pit Dimensions
To properly install inground trampoline models, you’ll need a bowl-shaped pit that accommodates the frame size and allows for bounce clearance.
Typical pit specs:
- Depth: 3 feet in center, sloping to 1–2 feet at edges
- Width: 1 foot wider than the trampoline
- Shape: Match the trampoline (round, square, or rectangle)
Use landscaping paint or chalk to mark the dig area.
Step 3: Excavation Process
Depending on your resources, you can dig manually or use a mini-excavator. For larger models (14ft+), renting equipment will save time and effort.
Expect to remove between 3 and 6 cubic yards of soil. Be sure to save some of the removed earth for backfilling the frame later.
Step 4: Addressing Inground Trampoline Drainage
Poor inground trampoline drainage is the #1 cause of long-term damage.
Here are three effective drainage solutions:
- Gravel Base + French Drain: Most popular and effective for normal yards.
- Sump Pump Drainage: Best for flat yards or high water table areas.
- Dry Well System: For areas with occasional heavy rainfall.
Always slope the base slightly downward and add drainage before frame installation.
Step 5: Frame Setup and Mat Installation
Assemble the frame and spring system above the ground, then lower it carefully into the pit.
Checklist:
- Ensure the frame is level and secure
- Attach airflow mat (if included with your model)
- Use spring puller to hook springs to frame and mat
- Double-check bounce tension
Backfill soil around the edges for a clean, flush finish with the lawn.
Optional Add-Ons to Improve Functionality and Safety
- Safety net: Especially helpful if small children will use it
- Rubber edging: To prevent trip hazards around the frame
- LED lighting: For nighttime jumping fun
- Weather cover: To extend lifespan
These accessories can also be installed by most trampoline installation services.
Maintenance Tips After Installation
- Inspect frame, mat, and springs monthly
- Clear leaves and debris from the pit weekly
- Test bounce and re-tighten any loose parts each season
- Check drainage after heavy rain or snow
Keeping your inground trampoline installation maintained ensures bounce performance and user safety for years to come.
Hiring Professional Inground Trampoline Installers
Not sure if DIY is for you? Professional services exist to make the process quick and safe.
Benefits of hiring professional inground trampoline installers:
- Full site inspection and layout planning
- Drainage and leveling done right
- Fast installation (1–2 days on average)
- Warranty on labor and structural setup
Hiring a pro is especially recommended for large or rectangular trampolines, or if you’re unsure how to manage the digging and drainage requirements.
Conclusion:
An inground trampoline installation is more than just a play upgrade — it’s a smart, permanent addition to your backyard that prioritizes safety, style, and long-term usability.
Whether you’re doing it yourself or hiring trampoline installation experts, remember: proper planning, effective drainage, and strong materials are key to making the most of your investment.
Start with the right site, follow the best practices, and enjoy the bounce for years to come.
