What to Put Under a Trampoline

A trampoline can be the highlight of any backyard, offering entertainment, physical activity, and a creative outlet for kids. But what to put under a trampoline isn’t just a matter of convenience—it’s critical to safety, maintenance, and long-term enjoyment. From shock absorption to weed control, the surface underneath plays a much larger role than most homeowners anticipate.

Understanding how different surfaces affect trampoline performance helps families choose the safest and most practical foundation. Whether you’re installing a brand-new unit or upgrading your current setup, paying attention to the ground beneath the trampoline can prevent injuries, protect the frame, and extend the equipment’s lifespan.

Grass: A Common but Imperfect Choice

Grass is the most typical surface found beneath trampolines, especially in residential settings. It’s soft, naturally absorbs impact, and is readily available. But it also presents some challenges. Grass underneath a trampoline often dies due to lack of sunlight and moisture. Over time, this can lead to patchy areas, uneven footing, and even mud during rainy seasons.

Routine maintenance becomes a concern as well. Mowing beneath a trampoline is difficult, and long grass can attract insects or become a breeding ground for mold. If grass is your surface of choice, consider rotating the trampoline occasionally and trimming underneath using handheld equipment.

Rubber Mulch and Playground Mulch

Rubber mulch is a popular solution used in commercial and residential play areas alike. It provides excellent shock absorption, helping to reduce injuries from accidental falls. It also offers great drainage and resists compaction, so it won’t turn into a hard surface over time.

Playground mulch, including engineered wood fiber, is another widely used option. While slightly less cushioned than rubber, it still provides safer impact zones than natural soil. Both types of mulch help prevent weed growth, and when installed properly with a landscape barrier, they create a clean, low-maintenance base.

According to the Consumer Product Safety Commission, surfacing materials like mulch and shredded rubber are recommended for fall zones in playground areas to minimize injury.

Artificial Turf

For homeowners looking for a low-maintenance, clean solution, artificial turf is an attractive option. It remains green year-round, requires no watering, and offers consistent texture and padding. Many turf products come with built-in drainage and antimicrobial properties, reducing moisture buildup and odor.

While initial installation can be more costly, artificial turf proves economical over time. There’s no mowing, fertilizing, or re-seeding required. The trampoline can stay in one place permanently without worry about damaging the lawn underneath. Brands offering playground-specific turf often include added safety features suitable for active use.

Paver Base or Gravel (for Drainage)

If drainage is a significant concern, especially in areas with frequent rain or poor soil, paver base or compacted gravel can be useful. These materials prevent standing water beneath the trampoline, which helps preserve the frame and springs.

However, these surfaces do not offer cushioning. To make them suitable for children, add a rubber mat or interlocking foam tiles on top. This dual-layer method keeps the trampoline level and dry while still absorbing impact.

Foam or Rubber Mats

Foam and rubber mats are ideal for indoor trampolines or for adding an extra layer of safety beneath outdoor setups. These mats are especially helpful for younger children and small backyard play areas. They offer superior shock absorption and can be cut to fit the footprint of the trampoline.

Some families also use interlocking gym tiles made of EVA foam. While they don’t offer the rugged durability of commercial playground surfacing, they work well for households that want a temporary or movable option. Just ensure these mats are waterproof and UV-resistant if placed outdoors.

Weed Barriers and Landscaping Fabric

Weeds and unwanted vegetation can grow quickly in shaded, moist areas beneath trampolines. Installing landscaping fabric or a high-quality weed barrier is a preventive step. These fabrics are placed directly on the soil and covered with mulch, gravel, or another top layer.

The barrier minimizes sunlight penetration and helps prevent aggressive weed growth, making the area under the trampoline safer and more visually appealing. It also reduces maintenance time, especially in the spring and summer when growth is at its peak.

What to Avoid Under a Trampoline

Concrete and other hard surfaces should be avoided unless paired with serious padding. Jumpers can fall or step awkwardly when getting on or off the trampoline. Hard surfaces increase the risk of injury.

Uneven ground is another hazard. Trampolines require level surfaces to function properly. Setting one up on a slope can destabilize the frame and affect bounce performance. Make sure to prepare the area carefully before assembly.

Elevating Safety with the Right Surface

Selecting the right material to put under a trampoline is part of creating a backyard space where safety meets enjoyment. From cushioning falls to promoting drainage and weed control, the right choice supports healthy outdoor play.

Some of the safest and most versatile surfaces include:

• Rubber mulch for cushioning and drainage
• Artificial turf for aesthetics and low maintenance
• Landscape fabric with mulch for weed prevention and impact control

Each of these materials not only enhances the user experience but also protects your investment in outdoor equipment.

Conclusion

Understanding what to put under a trampoline is as important as choosing the trampoline itself. Safety, durability, and ease of maintenance all depend on a solid foundation. Whether you opt for mulch, turf, or padded mats, your goal should be to create a clean, level, and shock-absorbent space for years of active fun.

At Kids World Play Systems, we help families build safe and exciting outdoor environments. From trampolines to swing sets and more, we’re here to help you make the most of every backyard adventure.