6 Best Magnetic Catches For Holding Shutters Open In High Winds

High winds are a constant reality on any open acreage, and few things are more unsettling than the sudden, violent bang of a shutter against the siding during a midnight gust. When heavy wooden shutters catch a crosswind, they act like sails, exerting immense pressure on hinges and mounting hardware that can lead to costly structural damage. Installing a high-quality magnetic catch ensures these decorative or functional fixtures stay pinned securely, protecting both the window glass and the building’s exterior.

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Jiayi 90lb Heavy Duty Magnet: Best Overall Choice

When dealing with full-sized wooden shutters, standard cabinet-grade magnets are insufficient. The Jiayi 90lb magnet offers the high-tension pull required to resist the “wing effect” created by wind passing between the shutter and the wall. Its stainless steel housing provides the necessary protection against the elements, preventing the internal magnet from cracking due to moisture exposure.

The sheer strength of this catch makes it the ideal choice for heavy-duty applications on farmhouses or large barns. It provides a satisfying “clunk” that signals a secure hold, even when the wind is whipping across an open field. This is the right choice for anyone with thick, solid-wood shutters who wants a set-it-and-forget-it solution that won’t give way during a standard thunderstorm.

While the 90lb pull force is a significant advantage, it does require a sturdy mounting surface to prevent the magnet from pulling its own screws out of the siding. Proper installation involves using longer stainless steel screws than those typically provided in the box to ensure a deep bite into the wall studs. For those prioritizing raw holding power and longevity over a slim profile, this model stands as the undisputed leader.

Deltana MDSH Magnetic Stop: Most Durable Design

Durability on a farm is measured by how well hardware survives cycles of freezing rain, baking sun, and high humidity. The Deltana MDSH is constructed from solid brass, a material legendary for its resistance to the corrosive forces that typically eat through cheaper pot-metal alternatives. Because it is a floor or wall-mount stop, it provides a physical buffer that prevents the shutter from ever impacting the siding directly.

This design is particularly effective for shutters that sit further away from the wall due to thick trim or decorative molding. The magnetic engagement is smooth, and the solid construction ensures the post won’t bend or snap if a gust slams the shutter home with extra force. It is the premier option for those willing to invest a bit more upfront to avoid the hassle of replacing rusted hardware every three seasons.

The aesthetic appeal of solid brass or stainless finishes allows this catch to blend into more formal farmhouse designs without looking like industrial scrap. However, the true value lies in the internal spring mechanism found in many Deltana stops, which helps absorb the kinetic energy of a closing shutter. Choose this model if the goal is a permanent, high-quality installation that maintains its function and appearance for decades.

National Hardware N220-111: Best Value Shutter Catch

Practicality often dictates that a solution must be both effective and affordable, especially when a property has a dozen or more windows to outfit. The National Hardware N220-111 provides a reliable magnetic hold at a price point that makes large-scale projects feasible. While it lacks the extreme pull of industrial models, its zinc-plated finish offers a baseline of rust resistance suitable for most inland environments.

This catch is best suited for lighter, decorative shutters or those in areas partially shielded from the direct brunt of the wind. It features a simple, low-profile design that doesn’t distract from the architecture of the building. For a hobby farmer managing multiple outbuildings, these magnets offer a consistent and cost-effective way to secure ventilation shutters on coops or sheds.

The tradeoff for the lower price is a more frequent maintenance schedule to prevent the zinc plating from failing. A quick spray of clear coat or regular cleaning can extend the life of these catches significantly. This is the correct purchase for the budget-conscious owner who needs a functional, no-frills solution for a large number of windows.

Moushous Heavy Duty Magnet: Best for Coastal Winds

Coastal environments present a unique challenge where high winds are paired with salt-laden air that can disintegrate standard hardware in months. The Moushous Heavy Duty Magnet utilizes 304-grade stainless steel, which is specifically engineered to resist the pitting and oxidation common in maritime climates. Its ultra-thin profile allows the shutter to sit closer to the wall, reducing the amount of air that can get behind the shutter and pry it loose.

The magnetic force is concentrated in a small footprint, providing a surprising amount of grip for its size. This makes it an excellent choice for modern farmhouses with sleek lines or for shutters where a bulky stop would be an eyesore. It is particularly effective when mounted in pairs—one at the top and one at the bottom—to distribute the wind load across the entire height of the shutter.

If the property is located within ten miles of the coast or in an area where road salt is heavily used, this is the necessary choice. The high-grade steel ensures the magnet remains powerful and the housing remains intact despite constant exposure to corrosive spray. It represents a specialized solution for harsh environments where standard “heavy duty” labels simply don’t hold up.

Sotech Waterproof Shutter Catch: Best Weatherproofing

Moisture is the silent killer of magnets, as it causes the internal neodymium or ferrite blocks to swell and shatter over time. Sotech addresses this by fully encasing the magnetic components in a waterproof housing, preventing any direct contact with rain or snow. This design is a game-changer for regions that experience heavy winters followed by wet, humid springs.

The smooth exterior of the catch also makes it easier to wipe clean of mud, dust, or pollen that can accumulate on a farm. Because the magnet is protected, the pull force remains consistent year after year, whereas exposed magnets often lose their effectiveness as they degrade. This model is perfect for shutters on the windward side of a house that bear the brunt of every passing storm.

• Full encapsulation prevents internal corrosion.
• The rounded edges reduce the risk of snagging clothing or debris.
• Installation is straightforward with standard tools.

Choose the Sotech if the primary concern is preventing the “swelling” effect that ruins most outdoor magnets. It provides peace of mind for owners who don’t want to worry about their shutters failing during a mid-winter gale when repairs are nearly impossible.

Idh by St. Annes Brass Catch: Best Traditional Look

For those restoring a historic farmhouse or building a new home with a classic aesthetic, industrial-looking magnets can ruin the visual appeal. Idh by St. Annes offers a solid brass magnetic catch that mimics the look of period-correct hardware while providing modern functionality. The finish is designed to patina over time, allowing the hardware to age gracefully alongside the wood of the shutters.

Despite its elegant appearance, the catch is surprisingly robust and capable of holding medium-weight shutters against significant gusts. The strike plate is often designed with a slight swivel or curve to ensure a perfect mate with the magnet, even if the shutters have sagged slightly over the years. This attention to detail makes it a favorite for high-end restorations where every component must be historically plausible.

This product is the right fit for the farmer who views their property as a long-term legacy and wants hardware that matches that sentiment. It is not the strongest magnet on the list, but it is undoubtedly the most beautiful. Use these on the front-facing windows of the main house where curb appeal is just as important as wind resistance.

Calculating the Right Magnetic Pull Force for Winds

Determining the necessary pull force is not a matter of guesswork; it is a calculation of surface area and wind speed. A standard 15-inch by 60-inch shutter represents over six square feet of surface area for the wind to push against. In a 40-mph gust, that shutter can experience dozens of pounds of force trying to rip it away from the wall.

• Small, decorative shutters: 20–40 lbs of pull force.
• Standard wooden shutters: 60–90 lbs of pull force.
• Extra-large or hurricane-rated shutters: 100+ lbs or dual magnets.

If the wind is a constant factor on the property, it is always better to over-specify the magnet strength. A magnet that is too strong might require a firmer tug to close, but a magnet that is too weak will result in broken glass. Consider the “fetch” of the wind—the distance of open ground it travels before hitting the house—as longer fetches result in higher pressure.

Step-by-Step Installation for Outdoor Shutter Catches

Success with magnetic catches depends entirely on the precision of the alignment between the magnet and the strike plate. Begin by securing the shutter in the fully open position with a temporary shim to ensure it is level and plumb against the wall. Mark the location for the magnet on the wall first, usually about two-thirds of the way up the shutter height to provide the best leverage.

Once the wall-side hardware is mounted, apply a small dab of lipstick or wet paint to the center of the magnet. Swing the shutter firmly against the magnet to transfer the mark onto the back of the shutter. This ensures the strike plate will be perfectly centered, allowing for 100% surface contact and maximum holding power.

Always pre-drill pilot holes when mounting into wood or masonry to prevent splitting or cracking. On brick or stone walls, use plastic anchors or Tapcon screws to ensure the magnet won’t vibrate loose over time. A small bead of exterior-grade silicone caulk behind the mounting plate can prevent water from seeping into the screw holes and causing rot.

Maintaining Outdoor Magnetic Catches Against Rusting

Even “rust-proof” hardware requires a basic maintenance routine to survive the rigors of farm life. Dust, salt, and metallic particles can accumulate on the surface of the magnet, creating a barrier that reduces the effective pull force. A quick wipe with a damp cloth every spring and fall is often enough to keep the connection strong and clean.

If the magnets are not fully encapsulated, a thin layer of clear silicone grease can be applied to the face of the magnet and the strike plate. This creates a moisture barrier that prevents oxidation without interfering with the magnetic field. For zinc-plated hardware that shows early signs of “white rust,” a quick scrub with a wire brush followed by a dab of cold-galvanizing spray can add years to its lifespan.

Keep an eye on the mounting screws, as the constant vibration from the wind can cause them to back out of the wood. Periodically tightening these screws—or replacing them with larger ones if the hole has become stripped—prevents the entire assembly from falling off. Proper maintenance is a five-minute task that prevents the much larger job of repairing a window shattered by a loose shutter.

Secondary Security Methods for Extreme Storm Winds

In regions prone to hurricanes, tornadoes, or extreme derecho winds, a magnetic catch should be viewed as a primary convenience, not the sole line of defense. Magnets are excellent for everyday use, but they can be overcome by sustained high-velocity winds that create a vacuum behind the shutter. In these scenarios, a mechanical backup is essential for protecting the home’s envelope.

Traditional “shutter dogs” or “S-hooks” provide a mechanical pivot that can be locked into place during storm warnings. These gravity-fed or latched devices do not rely on magnetic force and can hold hundreds of pounds of pressure. Combining a magnetic catch for daily ease of use with a heavy-duty bolt or hook for storm season provides the best of both worlds.

Another effective secondary method is the use of a simple “bungee” or tie-back system for outbuildings where aesthetics are less of a concern. For the farmhouse, ensure that the hinges themselves are in good repair and that the wood around the magnet mounting point hasn’t softened. When the forecast calls for extreme weather, physically checking that every shutter is properly seated against its magnet and secondary latch is a vital part of storm prep.

Selecting the right magnetic catch is a small investment that pays massive dividends in property maintenance and peace of mind. By matching the magnet’s strength and material to the specific wind conditions and climate of the farm, one ensures that the shutters remain an asset rather than a liability. Secure hardware is the quiet foundation of a well-maintained homestead.