Trampoline Springs: How Many You Need and How to Replace Them

Quick Answer

The number of springs your trampoline needs is determined by its frame size and the spacing between spring holes. Always replace springs in matching sets and use the exact size specified for your model. For most round trampolines, common counts are 72 or 75 v-ring springs, but always check your manual or count existing springs before ordering.

Springs are the workhorses of your trampoline, providing the bounce that makes jumping fun. But when they stretch, rust, or snap, you need to know exactly how many to buy and how to swap them out safely. This guide walks you through counting, sizing, and replacing trampoline springs without guesswork.

Whether you're fixing a worn-out mat or upgrading your setup, understanding spring counts and sizes is key. Let's dive into the practical steps that keep your trampoline safe and springy.

How Many Springs Does Your Trampoline Need?

The number of springs on a trampoline depends on the frame's circumference and the spacing between the spring attachment points. Manufacturers like Skywalker Trampolines design frames with a specific number of holes, and the springs are spaced evenly to distribute tension. For example, many 8-foot round trampolines use 72 springs, while larger 10-foot models may use 75 or more.

To find your exact count, check your owner's manual or count the springs currently attached. If some are missing, count the number of holes on the frame and the jump mat ring—they should match. Never assume a standard count; always verify to ensure even bounce and avoid stress on the frame.

• Count the holes on the frame or the mat ring if you're unsure.
• Check your model number on the white tag under the jump mat for exact specs.

Choosing the Right Spring Size

Springs come in different lengths and diameters, and using the wrong size can cause poor bounce or damage the frame. The length is measured from hook to hook, and the diameter affects how tightly the spring coils. For example, Skywalker's 8.5-inch springs with a 28mm diameter are designed for specific models; using a shorter or thicker spring can alter the tension.

Always match the spring size to your trampoline's specifications. If you're replacing a single spring, measure an existing one or check the model number. Using the wrong size may lead to uneven bounce or premature wear. When in doubt, consult the replacement parts guide for your model.

• Measure the spring from hook tip to hook tip for accurate sizing.
• Check the diameter to ensure a snug fit in the v-rings.

Signs You Need to Replace Your Springs

Springs wear out over time due to stretching, rust, and metal fatigue. Common signs include a sagging mat, reduced bounce, visible rust, or a spring that has lost its tension. If you notice any of these, it's time to replace the affected springs.

Replacing springs in pairs or full sets is recommended to maintain even tension. Mixing old and new springs can cause uneven bounce and stress on the frame. If more than a quarter of your springs are worn, consider replacing the entire set for consistent performance.

• Inspect springs monthly for rust or stretching.
• Replace springs in pairs or sets for balanced tension.

Step-by-Step Spring Replacement

1. Gather Tools and Safety Gear: You'll need a spring puller tool (or a sturdy screwdriver), work gloves, and safety glasses. If you're replacing springs on a mat, also have the correct bolts and a wrench ready. Checkpoint: Ensure you have the right spring size and quantity before starting.
2. Remove the Old Spring: Use the spring puller to hook the spring and gently pull it off the frame and mat ring. Avoid over-stretching the spring, and be careful of the tension—it can snap back. Mistake to avoid: Never use bare hands to pull springs; they can slip and cause injury.
3. Attach the New Spring: Hook one end of the new spring onto the frame, then use the spring puller to stretch it onto the mat ring. Ensure the spring sits fully in the v-ring or hook without gaps. Checkpoint: The spring should be taut but not overstretched. If it's too loose or too tight, recheck the size.
4. Replace in Pairs or Sets: For even tension, replace springs in pairs or complete sections. If you're replacing a full set, follow a pattern (e.g., opposite sides) to maintain balance. Mistake to avoid: Replacing only one spring in a worn set can lead to uneven bounce and faster wear on the new spring.
5. Test the Bounce: After all springs are in place, gently press on the mat to check for even tension. Then do a low bounce to ensure the mat is secure and the springs are seated correctly. Checkpoint: If the mat feels lopsided, recheck spring placement and tension.

Genuine Replacement Parts That Fit

• 8.5" Springs - 28mm Diameter - Qty 12: These rust-resistant springs are weather proof and made of galvanized steel. Meets or exceeds all ASTM safety standards, three year limited warranty. Galvanized steel resists rust, so these springs last longer in outdoor conditions. Buying a pack of 12 lets you replace a full section or top up a partial set without over-ordering.
• M8x35mm Button Bolt: M8x35 mm Button Bolt. Meets or exceeds all ASTM safety standards, one year limited warranty. Qty: 4. When replacing springs, you may need to remove the mat or frame bolts. Having the correct M8 button bolt on hand ensures a secure reattachment without mismatched hardware.

Replacing trampoline springs is a straightforward DIY task that keeps your trampoline safe and fun. Always match the spring count and size to your model, use genuine replacement parts, and follow the steps carefully. With the right springs in place, your kids can bounce with confidence.