How to Level a Trampoline: A Step-by-Step Guide for a Safe & Stable Setup

An unlevel trampoline isn’t just a nuisance—it’s a safety hazard. A tilted bounce surface creates an uneven force distribution, leading to unpredictable jumps and increasing the risk of falls and injuries. Furthermore, constant stress on one side of the frame can cause premature wear and tear. Ensuring your trampoline is perfectly level is the foundational step for safe, long-lasting fun. This guide will walk you through the process, from assessment to final adjustments.

Essential Tools and Preparation

Before you start, gather the right equipment. You’ll need a long spirit level (a 4-foot level is ideal), wooden planks or patio pavers for shimming, a shovel, a tape measure, and a helper. Begin by clearing the area of any debris, rocks, or branches. It’s best to choose a flat, grassy area away from overhanging trees and structures.

Assessing the Slope and Ground Condition

First, determine the severity and direction of the slope. Place your spirit level on the ground in several spots where the trampoline legs will sit. Mark the high and low points. For gentle slopes, shimming (using flat materials under the legs) is often sufficient. For severe slopes, you may need to consider excavating the high side to create a level base, which is a more permanent solution.

Step-by-Step Leveling Process

Step 1: Partial Assembly & Placement. Assemble the trampoline frame and legs, but do not attach the jumping mat or springs yet. Move the frame to your chosen location.

Step 2: Measure and Shim. Place your level across the frame from one side to the other. Identify the leg that is highest off the ground. Under the three lower legs, gradually add shims (like treated wood or concrete pavers). Check the level after each addition, both side-to-side and front-to-back.

Step 3: Secure and Final Check. Once the frame is perfectly level in all directions, secure the shims to prevent shifting. You can tap them into the ground slightly. Do a final check with the level. Now you can safely attach the mat, springs, and safety net.

Maintaining Stability and Safety

Regular maintenance is key. Periodically re-check the level, especially after heavy rain or frost, as ground can settle or shift. Ensure all shims remain secure and the leg anchors (if used) are firmly in the ground. A stable, level base is your first line of defense against tipping and structural strain.

Frequently Asked Questions (FAQ)

Q: Can I level a trampoline on a concrete surface?
A: Yes, but it requires a different approach. You must use specially designed trampoline anchor kits for concrete and use durable, non-slip rubber shims to adjust for minor leveling issues on the hard surface.

Q: What if my yard has a very steep slope?
A> For significant slopes, professional excavation or building a retaining wall to create a tiered, level platform is the safest option. Attempting to over-shim on a steep incline can compromise stability.

Q: How often should I check if my trampoline is level?
A: Conduct a quick check at the start of each bouncing season and after any major weather event like storms