6 Best Roof Hatch Struts For Easy Rooftop Access Setups

Nothing ruins a morning routine or an emergency maintenance task quite like a roof hatch that refuses to stay open or slams shut with zero warning. Whether navigating the tight confines of a van conversion or managing access to a rooftop deck, reliable hardware is the difference between a functional space and a constant frustration. Mastering the mechanics of these gas struts ensures that every ascent remains effortless and, most importantly, safe.

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Suspa C16 Gas Strut: Best Overall Value

When reliability meets affordability, the Suspa C16 series stands out as the industry standard for a reason. These struts are engineered for consistent performance across a variety of temperature ranges, making them ideal for both climate-controlled tiny homes and exposed mobile dwellings. Their build quality prevents the common “sag” associated with cheaper alternatives, providing a predictable lifting experience every time.

This model is perfect for those who need a dependable, set-it-and-forget-it solution without paying for specialized industrial branding. Because Suspa supplies parts for countless automotive and manufacturing applications, the engineering tolerances are much tighter than generic online listings. Choosing this strut means avoiding the common pitfall of buying replacements every single season.

Hatchlift Kit: Easiest DIY Installation

For those who find the technical side of gas strut geometry intimidating, the Hatchlift Kit provides a simplified, all-inclusive package. It comes with mounting hardware and clear instructions tailored specifically for those looking to retrofit existing hatches. The primary advantage here is the integrated system approach, which removes the guesswork regarding bracket positioning.

This kit is the premier choice for the weekend warrior who wants a professional-grade result without needing a degree in mechanical engineering. While the price point sits higher than buying individual struts, the time saved in measuring and sourcing compatible brackets is worth the investment. If the goal is a stress-free Saturday project, this kit is the only way to go.

Tuff Support 611913: Best Heavy-Duty Strut

When dealing with heavy insulated hatch doors or rooftop storage boxes, standard struts often fail to maintain lift. The Tuff Support 611913 is designed to handle significantly higher weight loads, ensuring that heavy materials do not collapse under gravity. The reinforced seals and robust nitrogen charging allow for a controlled, smooth motion even when lifting significant mass.

This strut is intended for high-clearance, heavy-duty applications where safety is non-negotiable. If a hatch requires physical effort to raise, the 611913 is the correct upgrade to transform a manual chore into a one-touch operation. It is an essential component for any setup where the hardware must bear the weight of heavy weatherproofing or security modifications.

JR Products GSNI-5300: Top Pick for RVs

RVs face a unique set of challenges, including constant vibrations and extreme temperature fluctuations that can compromise inferior seals. The JR Products GSNI-5300 is specifically tuned to resist these environmental stressors, maintaining its pressure longer than standard hardware. It is the go-to replacement for original equipment manufacturer (OEM) parts, fitting most standard roof vents and hatch profiles perfectly.

If an RV hatch has started drooping or feeling “loose” while driving, this is the definitive replacement part to restore factory-level performance. Because of its specific sizing, it fits into existing mount points with minimal adjustment required. For the mobile traveler, this strut offers the peace of mind that a hatch will stay securely closed on the highway and fully open at the campsite.

AP Products Gas Prop: Best Budget Replacement

Sometimes a project requires a functional solution that doesn’t break the bank, and the AP Products Gas Prop fills this niche perfectly. While it lacks some of the specialized dampening features of premium struts, it offers a solid, basic mechanism for light-duty hatches. It is a highly effective, low-cost way to get a malfunctioning door back in working order.

This is the right choice for the budget-conscious renovator or someone managing a temporary living space who doesn’t want to over-capitalize on hardware. While it may require more frequent replacement than industrial-grade options, its low cost makes that trade-off entirely manageable. It is perfect for lightweight, interior access hatches or storage compartments where heavy-duty performance is not a requirement.

Gasspringsshop: Best for Custom Applications

Custom builds rarely fit standard hardware, and this is where Gasspringsshop shines with its extensive configurator tools. They offer the ability to specify exact extended and compressed lengths, along with precise force ratings, to fit unique architectural angles. This resource is invaluable when the roof hatch geometry does not align with off-the-shelf, fixed-size parts.

This service is the professional’s choice for bespoke tiny homes or high-end roof deck projects. By providing precise force calculations based on the weight of the hatch, they ensure the door opens with the perfect amount of resistance. If a custom roof hatch setup is causing mounting nightmares, stop trying to force-fit generic parts and utilize their custom configuration tools instead.

How to Measure and Size Your Hatch Struts

Accurate measurement is the foundation of a successful strut installation. Always measure from the center of the mounting ball joint at one end to the center of the ball joint at the other while the hatch is fully open to get the “extended length.” Next, measure the “compressed length” with the hatch closed to ensure the strut will fit within the available space without bottoming out.

It is a common error to guess the length based on a visual estimate, which almost always results in a hatch that either won’t close fully or fails to lift high enough. Use a flexible tape measure or a piece of string to get these distances precisely. Remember that if the compressed length of the new strut is longer than the current one, the hatch will not be able to latch closed.

Understanding Strut Force (Lbs vs. Newtons)

Gas struts are rated by the amount of force they exert, usually measured in pounds (Lbs) or Newtons (N). One pound of force is roughly equivalent to 4.45 Newtons, so conversion is simple if the manufacturer uses one unit while the replacement calls for another. Using a strut with too little force results in a hatch that falls, while too much force can bend mounting brackets or make the hatch difficult to pull down.

A reliable trick for sizing is to weigh the hatch door at the point where the strut attaches. If the hatch weighs 20 pounds, the strut must exert at least that much force just to achieve equilibrium. Most installers aim for a strut slightly stronger than the weight of the hatch to account for friction and wind resistance, but balance is key to avoiding excessive strain on the hinges.

Safe Installation and Removal of Gas Struts

Gas struts are under extreme internal pressure, which makes improper handling dangerous during installation or removal. Always release the tension on the strut by propping the hatch open with a sturdy, reliable support stick before attempting to remove the existing hardware. Never attempt to compress a new strut by hand, as they are designed to require significant mechanical leverage to move.

When installing, ensure the brackets are securely anchored to a solid backing material, such as a stud or a reinforced hatch frame. If a strut is mounted to thin plywood or fiberglass, the force will eventually pull the screws out of the mounting surface. Always use a backup plate or through-bolts if the mounting surface feels flimsy or compromised.

Troubleshooting a Failing Roof Hatch Strut

A failing strut typically exhibits one of three symptoms: the hatch becomes difficult to raise, it fails to stay fully open, or it makes a hissing or grinding sound during operation. The most common cause of failure is the loss of nitrogen gas through worn seals, which naturally occurs over years of heavy use. Once the seal integrity is lost, the strut cannot hold pressure and requires immediate replacement.

If a strut feels “weak” in cold weather but functions better in the heat, the internal gas is likely still functional but has decreased in pressure due to temperature, a common trait of gas springs. However, if the strut fails consistently regardless of temperature, it is time for a replacement. Always replace struts in pairs; if one side has reached the end of its lifespan, the other is likely not far behind.

Investing in high-quality hardware for roof hatch access is one of the most impactful upgrades for any alternative dwelling. By selecting the right strut for the specific weight and geometry of the hatch, users ensure both longevity and safety for years to come. Consistency in maintenance and precision in measurement will keep these critical access points functioning smoothly through every adventure.