Quick Answer: A trampoline anchor kit is worth buying and worth being honest about: it holds a trampoline through routine gusty weather, and no consumer kit on the market carries a wind rating or a guarantee. Jumpflex says so in writing on its own product page — the ANCHORKIT “is only a preventative measure” and the company “does not claim or guarantee” it will prevent damage. For most backyard round trampolines the best buy is a set of auger (corkscrew) anchors with heavy-duty straps, one per leg, rather than the four U-stakes that come in the cheapest kits, because trampolines lift before they slide. If you want published holding numbers instead of adjectives, American Earth Anchors’ Penetrator screw anchors ($25.26 for the 10-inch PE10 up to $41.12 for the 26-inch PE26) are the only ones in this category that come with load-capacity charts by soil type. And before any storm, do the free step first: take the net and poles down.
Anchoring is the cheapest safety upgrade in this hobby — $30 to $60 against a $450 trampoline — and it is also the one where marketing runs furthest ahead of the evidence. Listings say “hurricane-proof” and “withstands high winds.” Almost none of them say how many pounds of uplift the anchor holds, at what depth, in what soil. This guide sorts the kit types by what they physically resist, names the ones worth buying, and puts the manufacturers’ own storm advice next to their own sales copy.
Trampoline anchor kits compared
| Kit | Best for | Price | Type | Depth / spec | Published holding force? |
|---|---|---|---|---|---|
| Jumpflex ANCHORKIT | Best overall strap-and-stake kit | $39.95 (Jumpflex) | Ground anchors + heavy-duty straps | Not published | No — explicit no-guarantee disclaimer |
| Skywalker Wind Stakes, 4-pack | Best OEM match | $34.00 (Skywalker) | Galvanized steel stakes over the leg | 12.5 in; fits legs up to 2 in | No — ASTM claim, 3-year limited warranty |
| American Earth Anchors Penetrator (PE10 / PE18 / PE26) | Best holding power | $25.26 / $31.49 / $41.12 each | Aluminium screw-in earth anchor | 10, 18 or 26 in | Yes — load-capacity charts by soil type |
| Eurmax USA corkscrew stakes, set of 4 + straps | Best auger value | ~$25–35 street | Auger stakes + belts + T-hook | ~16 in stakes | No |
| N1Fit Trampoline Stakes | Best budget auger set | ~$25–35 street | Galvanized-zinc corkscrew stakes | Auger, strap-connected | No |
| SpaceJump Gravity Anchor Kit | Best for decks and patios | $29.95 sale (from $34.95) | Weight-based, no ground penetration | n/a | No |
| ACON Ground Anchor | Best for ACON owners | Sold individually (ACON) | OEM ground anchor | 2 included with 13 HD / 16 HD | No |
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By the numbers
- “Only a preventative measure.” Jumpflex states on the ANCHORKIT product page that the kit “is only a preventative measure and Jumpflex® does not claim or guarantee that the ANCHORKIT™ will prevent your trampoline and or property from sustaining damage of any kind” (Jumpflex). It is the most honest sentence published in this product category.
- 10, 18 and 26 inches are the three depths American Earth Anchors offers for its Penetrator screw anchors ($25.26 to $45.56 depending on depth and drive head), and the company publishes load-capacity charts by soil type rather than a single headline number (American Earth Anchors).
- 12.5 inches is the length of Skywalker’s galvanized wind stakes, which fit any trampoline with a leg diameter up to 2 inches, meet or exceed ASTM standards and carry a 3-year limited warranty at $34.00 for a 4-pack (Skywalker Trampolines).
- 2 anchors ship with ACON’s rectangular 13 HD and 16 HD trampolines, with additional ground anchors sold individually — a factory-supplied kit that is explicitly a starting point (ACON).
- 40 to 50 mph is the wind band commonly cited across the industry for lift-off of an unanchored trampoline, with movement becoming likely from around 35 mph. No consumer anchor kit is certified to any of these figures.
- $25 to $60 buys a full anchoring setup against $350 to $700 for a mid-range 14 ft trampoline — a 5 to 10 percent insurance premium on the hardware, before you count the fence, car or neighbour it might otherwise land on.
The honest problem: the numbers nobody prints
Every other component of a trampoline carries a figure you can check. Frames get a static load rating. Mats get a per-jumper weight limit. Nets get an ASTM F2225 reference. Anchor kits get adjectives: heavy-duty, hurricane-proof, high-wind.
There is a reason for that, and it is not entirely cynical. An anchor’s holding capacity is not a property of the anchor — it is a property of the soil the anchor is in. The same 16-inch auger that will not budge from compacted clay will pull cleanly out of saturated sand or a lawn after three days of rain. A manufacturer that printed “holds 500 lb” would be printing a number that is wrong in half of American backyards.
The right response to that is what American Earth Anchors does: publish capacity as a chart against soil type and let the buyer read their own ground. The common response is to print nothing and imply everything. When a listing says “hurricane-proof” with no depth, no soil condition and no force, you are reading marketing, not a specification.
Two consequences follow for buyers. First, prefer depth over branding — an 18 or 26-inch anchor in the same soil beats a 12-inch one every time, and depth is a number you can actually compare. Second, treat any anchor kit as a device that raises the wind speed at which you have a problem, not one that removes the problem.
The three anchor types, and what each one actually resists
| Type | How it attaches | Resists sliding | Resists lifting | Works on hard surfaces |
|---|---|---|---|---|
| U-stake (over-the-leg) | Hooks over the leg, drives straight down | Yes | Weakly — pulls straight out | No |
| Auger / corkscrew + strap | Screws into soil, strap over frame | Yes | Yes — soil must fail first | No |
| Screw-in earth anchor (Penetrator-style) | Driven with an impact wrench, cable or bracket to frame | Yes | Strongest — depth-rated | No |
| Gravity / sandbag kit | Weight on or over the legs | Partly | Only up to its own mass | Yes |
The distinction that matters is the one most buyers get wrong. A trampoline in wind does not usually slide away; it lifts. The mat and the spring pad form a broad, slightly domed surface, and the enclosure net turns the whole assembly into something closer to a kite than a table. Wind gets under the frame and generates uplift, the legs come off the ground, and once one side is up the rest follows.
That is why U-stakes — the cheapest and most-sold type — are the weakest choice. Driven vertically into soil, a U-stake resists being pulled straight back out mainly through friction along a foot of dirt. An auger has to bring a cone of soil with it. Same price bracket, different physics.
The free step that outperforms the kit
Here is the part the anchor listings have no incentive to tell you, and the trampoline manufacturers tell you plainly.
ACON’s own securing guide advises owners to take the enclosure off ahead of extreme weather, and to remove the poles and the frame the net fits onto so they do not bend. Jumpflex’s high-wind article opens its advice with “firstly take down the safety enclosure net,” and adds that for severe storms you should “consider taking the trampoline down fully if it is in an exposed place.”
Both companies sell anchor kits. Both tell you that in serious wind the first move is to reduce the sail area, not to add hardware. That is worth sitting with: the net and poles are the largest wind-catching surface on the trampoline, they come off in twenty minutes, and removing them costs nothing.
There is also a small contradiction worth flagging, because it tells you how to read this category. Jumpflex’s blog recommends the ANCHORKIT with no caveats at all. Jumpflex’s product page for the same kit carries the explicit statement that it is only a preventative measure and comes with no guarantee. Same company, same product, two registers. Believe the product page.
Our picks
Jumpflex ANCHORKIT — best overall strap-and-stake kit
- Ground anchors plus heavy-duty straps — the strap-over-frame design that resists uplift, not just sliding.
- Compatible with all Jumpflex trampoline models sold in the US, and with standard round frames generally.
- Publishes the honest disclaimer: "only a preventative measure," no guarantee against damage.
- Jumpflex's own guidance: set anchors at an angle, away from the base, for maximum stability.
This is the shape of kit most people should buy: anchors into the ground plus a strap that goes over the frame, so the load path runs from the trampoline into the soil rather than into a stake’s side wall. At $39.95 it sits in the middle of the market. The reason it leads this list is partly the design and partly the disclosure — a company willing to print the limits of its own product on the page where it sells it is a company describing the product accurately.
Skywalker Trampoline Wind Stakes, 4-pack — best OEM match
- 12.5-inch galvanized steel stakes, weather-resistant, fitting any trampoline with a leg diameter up to 2 inches.
- Meets or exceeds ASTM safety standards; 3-year limited warranty — unusually long for an accessory.
- Also bundled in Skywalker's accessory combos with a ladder or a basketball game ($49–$74).
- Four stakes suit a 4- or 6-leg frame only if you accept the unstaked legs; buy a second pack for full coverage.
If you already own a Skywalker — and a lot of people do, given the Skywalker range dominates the budget end — this is the cheapest way to get a stake that definitely fits your leg diameter and does not void anything. The 12.5-inch depth is the compromise: fine in firm ground, marginal in wet or sandy soil. The 3-year warranty is the standout, since most anchor hardware is sold with none at all.
American Earth Anchors Penetrator (PE10 / PE18 / PE26) — best holding power
- Aluminium screw-in earth anchors in 10, 18 and 26-inch depths — the only depth ladder in this category.
- Load-capacity charts published by soil type instead of a single marketing number.
- Installed with a battery impact wrench; removable, so the yard can be mowed normally out of season.
- Accessories: tie-off cable with 2-inch flange ($14.67), 2-inch pipe bracket ($15.50, or $21.93 in safety orange).
- Sold per anchor — budget roughly $125–$180 to do a six-leg trampoline properly with brackets.
This is what you buy when the trampoline is in an exposed yard, on a slope, or somewhere the wind actually gets going. It is three to five times the price of a consumer kit, and it is the only option here where you can look up how much load your specific soil will hold before you buy. The 26-inch PE26 goes more than twice as deep as any trampoline-branded stake on the market. For a $2,500 ACON or a large rectangle, the maths is not close.
Eurmax USA corkscrew stakes, set of 4 with straps — best auger value
- Four ~16-inch auger stakes in solid steel with a spiral blade that hand-screws into turf — no tools.
- Includes four heavy-duty belts and a T-pull hook, so it is a complete strap-and-anchor system, not bare stakes.
- Doubles as a canopy, swing-set or dog tie-out anchor — the same kit works across the yard.
- Eight-stake versions exist for owners who want two anchors per leg on larger frames.
- No published holding force; treat depth (~16 in) as the number you are actually buying.
Auger design, straps included, and roughly 16 inches of steel in the ground for the price of two U-stake packs. Prices on Amazon-only accessories move constantly, so the figure above is a typical street range rather than a manufacturer list price — check before you order. This is the pick for most 12 ft and 14 ft round trampolines in ordinary soil.
N1Fit Trampoline Stakes — best budget auger set
- Corkscrew stakes with a galvanized zinc coating for moisture and rust resistance.
- Sold both as auger sets and as 12-inch U-anchors — make sure you are buying the auger version.
- Wide spread of anchorage across the frame; strap-connected rather than clamped to the leg.
- The cheapest way to move from "nothing" to "something that resists uplift."
N1Fit sells two very different products under near-identical listings: a corkscrew auger set and a 12-inch U-anchor set. The U-anchors are cheaper and are the ones to skip if uplift is your concern. Read the listing title carefully.
SpaceJump Gravity Anchor Kit — best for decks, patios and hard ground
- Weight-based system — no ground penetration, so it works where a stake physically cannot go.
- The realistic option for trampolines on patios, decks, artificial turf or over a slab.
- Holds only up to its own mass: a gravity kit cannot resist more uplift than it weighs.
- SpaceJump does not publish a weight capacity — assume it is a wind-mitigation aid, not a storm solution.
If you cannot drive a stake, this is the category you are in, and the physics is simple enough to reason about without a spec sheet: a gravity anchor resists exactly as much uplift as it weighs, minus the friction it adds. That makes it genuinely useful in gusty weather and genuinely inadequate in a storm — at which point the only correct move for a deck-mounted trampoline is to take it down.
ACON Ground Anchor — best for ACON owners
- Two anchors ship with ACON's rectangular 13 HD and 16 HD trampolines; more are sold individually.
- Matched to ACON's frame geometry — no strap-fit guesswork on a heavy rectangle.
- ACON's own storm guidance goes further than anchoring: remove the enclosure, poles and net frame.
- Worth pairing with deeper third-party anchors on exposed sites; two anchors will not hold a 16 ft rectangle alone.
Two anchors on a 16-foot rectangle is a factory gesture, not a finished anchoring job. Buy the OEM units for correct fitment at the frame end, then add depth where the yard needs it. Full range details in our ACON trampoline guide.
How to anchor a trampoline properly
- One anchor per leg, not four per trampoline. A 6-leg 14 ft round needs six. Most kits ship four because four is what fits the price point.
- Buy augers or screw anchors, not U-stakes. Uplift is the failure mode; only anchors that have to drag soil with them resist it.
- Set anchors at an angle, leaning away from the frame. Jumpflex’s own instruction, and it puts the strap in line with the pull rather than across it.
- Match depth to soil, not to price. Sandy, wet or recently-landscaped ground needs 18 to 26 inches. Firm clay is forgiving of 12.
- Check the straps every spring. Webbing that has sat through a winter of UV and freeze-thaw is the weak link in an otherwise sound setup — the same UV clock that governs replacement nets.
- Take the net and poles down before a storm. ACON and Jumpflex both put this ahead of anchoring in their own guidance. It is free and it removes the largest sail.
- Fully dismantle for a named storm or an exposed site. Every manufacturer’s severe-weather advice ends here. No kit sold to consumers is rated for it.
- Never anchor to a fence, a tree or a car. You are then attaching the two things you least want connected in a wind event.
When the answer isn’t an anchor kit
Sometimes the right purchase is not hardware at all. If your trampoline sits on an open, elevated or wind-funnelled site, the durable fix is relocation — a spot with a fence, hedge or house upwind reduces the load far more than a stake ever will. If you are already re-siting, an in-ground trampoline removes the wind problem almost entirely, because there is no gap under the frame for air to get into; that is the underrated argument for the format, alongside the aesthetics. And if the trampoline comes down every autumn anyway, a cover and a winter dismantle beat a permanent anchor system on both cost and net lifespan.
The bottom line
Buy an anchor kit — the cost-to-risk ratio is one of the best in the yard. Buy the right kind: auger anchors with straps, one per leg, not a four-pack of U-stakes. The Jumpflex ANCHORKIT ($39.95) is the best all-round consumer buy and the most honestly described; Skywalker’s 12.5-inch wind stakes ($34.00, 3-year warranty) are the safe OEM choice for Skywalker owners; the Eurmax and N1Fit auger sets (~$25–35) are the value picks for ordinary soil; SpaceJump’s Gravity Anchor Kit ($29.95) is the only workable answer on a deck; and American Earth Anchors’ Penetrators ($25.26–$45.56 each, 10 to 26 inches, with real load charts) are what you buy when the site is exposed or the trampoline is expensive.
Then hold two facts together. No consumer anchor kit carries a wind rating, and Jumpflex — a company that sells one — writes on its own product page that its kit “is only a preventative measure” with no guarantee against damage. Anchoring raises the wind speed at which your trampoline becomes a problem. Taking the net down, and taking the whole thing down before a serious storm, is what actually solves it.
Setting up or re-siting? See our best trampoline guide for the current field, the best 14ft trampoline for the most common backyard size, the best in-ground trampoline if wind is a recurring problem, and whether Amazon Prime is worth it for trampoline shoppers before you order accessories.