Once your new trampoline arrives, the first task is installation. Many parents ask: can I install it myself? How many people do I need? What should I watch out for? Truth is, trampoline assembly isn‘t as simple as it looks. An incorrectly installed trampoline can result in an unstable frame, misaligned padding, loose enclosure, and even accidents. Let’s walk through the entire process and highlight the 5 most common mistakes.

DIY or hire a pro?

Most home trampolines (8-14ft) can be assembled by two adults in 2-4 hours. If you and a partner are handy, have basic tools (rubber mallet, ladder, wrench), and are patient, DIY is a great option. Benefits: saves money, you learn the structure thoroughly, and future maintenance is easier. However, if you‘re a beginner, short on time, or buying a very large model (16-18ft with many heavy parts), consider hiring someone.Either way, at least two people are strongly recommended.

Preparation before installation

l Clear your backyard area, ensuring the trampoline size+1.5-2m (5-6.5ft) of clearance on all sides.

l The ground must be level, with no noticeable slope. If uneven, dig down the high spots or build a level base (e.g., rubber tiles, wood chips).

l Gather tools: rubber mallet (for frame connections), wrench or socket set (size as per bolts), ladder (for net assembly), soft cloth (to protect frame from scratches).

l Read the manual thoroughly. Follow steps in order—don‘t skip ahead.

l The 5 most common installation mistakes

Mistake 1: Not leveling the ground. This is the most dangerous and common error. Placing a trampoline on a slope or uneven surface causes uneven frame stress, off-center bouncing, and even tip-over. Fix: Use a spirit level before starting. The simplest DIY fix is digging down the high side or raising the low side with compacted soil or rubber mats. For a permanent solution, build a wooden or concrete platform. Never force a trampoline onto uneven ground.

Mistake 2: Springs installed unevenly or missing. Some users take shortcuts—installing springs out of order or skipping a few. This creates uneven mat tension; the trampoline will bounce toward one side, increasing injury risk. Correct method: Use a spring tool or have two people work together, attach springs in a diagonal pattern, and make sure every single spring is installed. All springs included with MERSCO trampolines must be used — do not leave any out.

Mistake 3: Padding misaligned or not secured. Padding covers springs and the frame.If the padding does not fully cover all springs, or if the straps are not tied tightly, a child‘s foot can slip into a gap, causing pinch or abrasion injuries. Correct method: Center the padding over the mat, verify every spring is covered, then secure all straps to the frame tubes. Overlapping sections of padding should also be fastened together.

Mistake 4: Enclosure net too high or zipper facing the wrong way.The bottom edge of the net should reach below the mat surface and be attached to the frame or mat. If the net is hung too high, a child could roll out underneath. If the zipper faces outward (instead of inward), a jumper could accidentally bump it open. Correct method: Follow the manual precisely for pole and net assembly. The closed zipper should face the inside of the trampoline to prevent accidental opening. Also, all bottom hooks or ties must be securely connected to the frame or spring hooks.

Mistake 5: Ignoring ground anchors or weights.Outdoor trampolines can be blown over by strong winds, even with an enclosure. Many parents think “the trampoline is heavy—it won‘t move.” But an 8-14ft unoccupied trampoline has surprisingly poor wind resistance. Correct method: Buy purpose‑made spiral ground anchors (usually 4-6) and screw them into the ground through the leg bases. If your surface is concrete or decking, use sandbags or heavy weights to hold down the legs. MERSCO strongly recommends ground anchors, especially in windy regions.

Post-installation checklist

After assembly, don‘t let kids jump immediately. Perform a full inspection: Shake the frame vigorously to check for wobbling; press down on various spots of the mat to feel for even spring tension; tighten all bolts (use a torque wrench or hand‑tighten firmly); close the zipper and push the net from the inside to ensure it won’t detach; finally, bounce gently for a few minutes, listening for strange noises or swaying.

MERSCO installation support

Every MERSCO trampoline includes a detailed multi-language manual with illustrations. If you run into trouble, customer service can provide remote guidance via email or chat.All parts are labeled, so if you need a replacement or a missing part, support can send clear instructions.

Installation takes time, but doing it right once means years of safe use. If you decide to DIY, set aside an afternoon and have two adults. If you’re not confident, paying a professional is well worth the peace of mind.

Shop on Walmart: https://www.walmart.com/brand/mersco/10047820

Shop on Amazon: https://www.amazon.com/stores/MERSCO/page/55B4E19F-1D0B-424B-96D3-24D29B996177

Or read our [brand story] to see how MERSCO prioritizes safety from the very first step — installation.