## How to Level a Trampoline: A Step-by-Step Guide for a Safe and Stable Bounce
A **level trampoline** is essential for safe, predictable bouncing. An uneven surface strains the frame, wears out springs unevenly, and increases injury risk. If you’ve noticed your mat pulling to one side or your frame wobbling, learning how to level trampoline correctly will protect your investment and your jumpers. This guide walks you through every step, from diagnosis to final safety check.
### **Why a Level Trampoline Matters**
An unlevel trampoline shifts the center of gravity. Jumpers drift toward the low side, springs on that edge stretch further, and the frame twists under load. Over time this causes **premature spring failure**, bent poles, and a dangerous tilt. According to **trampoline safety guidelines**, the mat should sit level within about 1 to 2 degrees. Anything more calls for correction.
### **Tools and Preparation**
Gather a tape measure, spirit level (or a level app), shovel, tamper, wooden stakes, and a friend. Clear the area of rocks and roots. **Mark the low side** with stakes so you can track progress. Never attempt leveling alone on a large model—two people make the job faster and safer.
### **Step 1: Diagnose the Slope**
Place a long spirit level across the frame at four points. Note which legs sit low and by how much. Most unevenness comes from **soil settling**, not a bent frame. If the frame itself is twisted, you’ll need to disassemble and inspect joints before leveling.
### **Step 2: Lift and Support the Low Side**
With a helper, gently lift the low edge. Slide a temporary support block underneath. Never leave the frame unsupported while you work. For in-ground models, dig out the high side first so the frame rests on solid, uncompacted soil.
### **Step 3: Adjust the Legs and Footings**
**Threaded leg extensions** or stacking shims correct small gaps. For above-ground models, place pressure-treated pads under each low leg. Re-check with your level after every adjustment. Repeat until the bubble centers at all four points.
### **Step 4: Compact the Soil**
Loose fill settles fast. Add crushed gravel or paver base under each leg, then **tamp firmly**. Water lightly and tamp again. This prevents future sinking. For **in-ground trampolines**, backfill in thin layers and compact each one.
### **Step 5: Verify Springs and Mat Tension**
A level frame can still hide uneven spring tension. Count the springs and check that the mat sits centered. Replace any stretched springs. Equal tension keeps the bounce consistent across the entire surface.
### **Common Mistakes to Avoid**
Placing shims only under the legs rather than distributing load. Ignoring the frame’s squareness while leveling. Skipping soil compaction. Forgetting to re-check after the first rain. Each shortcut leads back to an unlevel mat within weeks.
### **How Often Should You Re-Level?**
Check your trampoline twice a year, plus after heavy rain or frost. Seasonal ground movement shifts footings gradually. A quick level check takes five minutes and prevents long-term frame damage.
### **Frequently Asked Questions**
**Can I level a trampoline by myself?** Small models, yes. Larger frames need two people for safe lifting.
**Do I need to empty the trampoline first?** Always remove jumpers and accessories before lifting.
**What if the frame itself is bent?** Replace damaged poles—leveling won’t fix structural warping.
**Can I use wood shims?** Only pressure-treated pads designed for outdoor load. Bare wood rots