6 Best Universal Strike Plate Spacers For Uneven Rv Door Frames

An uneven RV door frame can turn a simple trip to the galley into a frustrating struggle with a latch that refuses to catch. These structural imperfections often result from frame settling, temperature-induced expansion, or the constant vibrations inherent in mobile living. Investing in the right strike plate spacer is the most effective, low-cost way to restore security and functionality to an RV entry point.

Disclosure: As an Amazon Associate, this site earns from qualifying purchases. Thank you!

Prime-Line U 9467 Shims: Best Value Pack

When multiple doors in an RV are suffering from poor latch engagement, buying individual spacers becomes an unnecessary expense. Prime-Line U 9467 shims offer an economical solution that provides enough material to address several strike plates throughout a unit. The multipack format is ideal for those who prefer keeping spares in the rig’s toolkit for future repairs.

These shims are designed for high compatibility, fitting most standard-sized strike plates found in recreational vehicles. Because they are thin and stackable, they allow for precise adjustments rather than forcing a “one-size-fits-all” outcome. If the goal is a cost-effective, bulk-buying approach to fixing minor misalignment, this is the definitive choice.

While they lack the heavy-duty structural reinforcement of premium steel options, they excel in versatility. They are perfect for budget-conscious owners who need to address gaps that aren’t severe enough to warrant major frame surgery. For general maintenance and quick fixes, these shims provide the best value without compromising on utility.

Don-Jo 16-SWP Wrap-Around: Best for Security

Security in an RV is often overlooked, but the door is the most vulnerable entry point. The Don-Jo 16-SWP Wrap-Around goes beyond simple spacing by extending the strike plate area to reinforce the jamb itself. This is an essential upgrade for those who frequently leave their rig unattended in remote areas.

Because it wraps around the edge of the door frame, it compensates for the unevenness that often plagues RV door openings. It provides a solid, metal-backed surface for the latch to lock against, which is significantly more secure than a standard plastic or thin metal spacer. It essentially rebuilds the integrity of the door frame connection.

Installation requires a bit more technical effort since the wrap-around design must fit flush with the existing door profile. However, the trade-off is superior peace of mind. If security is the primary concern, skip the basic shims and opt for this robust hardware that turns a weak point into a fortified lock.

Defender Security U 10313: Easiest Install

Time and patience are often in short supply when performing repairs in the confined quarters of an RV. The Defender Security U 10313 is designed specifically for those who want to fix their latch issues in under five minutes. Its simple, single-piece construction removes the guesswork involved in stacking multiple thin shims.

This spacer is engineered for a quick, clean fit behind existing strike plates, meaning no specialized tools are required beyond a standard screwdriver. It is specifically shaped to minimize gaps without creating an unsightly protrusion on the door frame. The finish is professional and subtle, making it an excellent match for most standard RV door hardware.

This is the go-to solution for the owner who wants functionality restored immediately without a steep learning curve. While it may not be suitable for extreme gaps or structural damage, it is nearly unbeatable for routine alignment issues. It is the perfect blend of simplicity and efficiency for a stress-free repair.

Builder’s Best Latch Shims: Pro’s Choice

Professionals who work on mobile dwellings often prioritize material durability and precise sizing. Builder’s Best Latch Shims are manufactured with a focus on structural integrity, ensuring that the latch mechanism doesn’t “eat” into the spacer over time. These are the spacers to choose if a repair needs to last for several thousand miles of vibration and road travel.

These shims are typically made from more resilient materials, preventing the compression and cracking often seen with cheaper plastic alternatives. The consistency in manufacturing means that when a specific thickness is stated, it is accurate to the millimeter. This precision is vital when dealing with door frames that are only slightly out of square.

Choosing these shims is an investment in the long-term health of the door latch mechanism. They are meant for those who prefer to “do it once and do it right,” avoiding the need for future re-adjustments. If the repair environment involves high-traffic doors or heavy-duty latches, these are the superior pick.

MAG-Engineering Spacers: Most Versatile Fit

Not all RV doors are created equal, and custom builds often feature non-standard frame dimensions. MAG-Engineering Spacers provide a level of adaptability that standard, big-box store shims simply cannot match. Their design allows for minor field adjustments, making them a favorite for those managing rigs with complex or unique door geometry.

These spacers often feature modular components that can be trimmed or shifted to accommodate irregular strike plate mounting screws. This is a game-changer for older RVs where the original factory holes have become stripped or misaligned. They effectively hide unsightly frame damage while providing a rock-solid foundation for the latch.

While they may require a bit more effort to fit perfectly, they represent the ultimate problem-solver for difficult door frame issues. They are not the cheapest option, but they are the most versatile. When standard spacers fail to bridge the gap properly, this is the product that will likely get the job done.

EZ-SHIM Plastic Shims: Best DIY Solution

For the casual DIYer, the primary concern is preventing damage to the door frame during the repair process. EZ-SHIM Plastic Shims are engineered to be forgiving, pliable, and incredibly easy to cut to size. They are the ideal material for beginners who are wary of using heavy metal spacers that might scratch or dent the door frame finish.

These shims excel in scenarios where the RV door frame is made of softer material, such as composite or wood-wrapped aluminum. The plastic composition provides a slight “give,” which helps absorb the impact of the latch slamming against the plate during road transit. They are the most user-friendly product on the market for a quick home-style repair.

While they shouldn’t be used for extreme load-bearing applications, they are perfect for correcting minor latch-to-plate misalignments. The ease of trimming these shims makes them indispensable for fixing doors that are only slightly off-center. They are an affordable, non-intrusive way to ensure the door closes securely every time.

How to Diagnose a Misaligned RV Door Latch

Diagnosing an alignment issue begins with a visual inspection of the latch tongue and the strike plate hole. If the tongue is hitting the top or bottom of the plate rather than the center, the frame has shifted. Use a piece of masking tape over the strike plate and close the door; the resulting imprint will show exactly where the latch is making contact.

Check for “play” in the door itself by attempting to move it while latched. If the door rattles, the strike plate is likely too far away from the door edge, preventing the latch from fully engaging. Conversely, if the latch is too stiff to turn, the door is pressing too hard against the frame, indicating the spacer might actually be too thick or the frame has compressed.

Always inspect the hinge side of the door first. Sometimes, sagging hinges are the true culprit, and adding a strike plate spacer is merely a temporary patch. If the hinges are tight, then proceed with the strike plate adjustment to correct the latch engagement.

Choosing the Right Spacer Thickness & Material

Selecting the wrong material can lead to recurring repairs. For exterior doors, opt for corrosion-resistant materials like stainless steel or high-grade, UV-stabilized plastic. Metal spacers are superior for structural reinforcement, while plastic shims offer easier installation and better shock absorption for interior doors or lightweight frames.

Thickness is calculated by measuring the gap between the door and the jamb when the door is fully closed. A good rule of thumb is to start with a spacer that is roughly 1/16th to 1/8th of an inch thick. Avoid stacking more than two layers of shims; if a larger gap must be filled, a block or custom-made shim is safer and more stable than a stack of thin plates.

Always ensure the spacer is wider than the strike plate itself to provide a flush mounting surface. If the spacer is too narrow, the strike plate screws will not bite into the frame properly, leading to a loose assembly. A properly sized spacer should look like a natural extension of the door frame hardware.

Step-by-Step Guide to Installing Your Spacer

Begin by removing the existing strike plate screws, being careful not to let the plate fall if the wood behind it is brittle. Clean the surface of the door frame, removing any dirt or debris that could prevent the spacer from sitting perfectly flat. If the old screw holes are stripped, fill them with wood filler or match-stick wood glue before attempting to re-screw.

Place the spacer between the strike plate and the door frame, aligning the screw holes carefully. Many spacers feature adhesive backings, which help hold the piece in place while you align the strike plate. Once positioned, replace the screws and tighten them incrementally; do not overtighten, as this can crack the spacer or strip the frame holes.

Test the door operation repeatedly to ensure the latch engages smoothly without catching or binding. If the latch is still too tight, adjust the spacer thickness or slightly file the strike plate opening. A well-adjusted door should latch with a solid, satisfying click and show no visible rattle when closed.

When Spacers Aren’t Enough: Other Fixes

Spacers are a targeted solution for minor misalignments, but they cannot fix major structural failures. If the RV door frame itself is cracked, bowing, or suffering from moisture-related rot, a spacer will only hide the symptom while the frame continues to degrade. In these instances, the entire frame assembly may require reinforcement with L-brackets or total replacement.

Hinge adjustment is an often-overlooked secondary step. If the door is visibly sagging, tighten the mounting screws on the hinge plates or add a shim behind the hinge side of the frame to “kick” the door back into alignment. Often, a combination of hinge adjustment and a strike plate shim provides the most balanced, long-term solution.

If the latch itself is worn down from years of use, no amount of spacing will make the door secure. Replace the latch mechanism alongside the spacer to ensure the internal spring and tongue function at full capacity. Prioritize structural integrity over quick cosmetic fixes to ensure the safety and longevity of the mobile living space.

Correcting an RV door alignment is a fundamental skill for maintaining the integrity of any mobile dwelling. By diagnosing the specific cause of the misalignment and selecting the appropriate spacer, most latch issues can be resolved with minimal cost and effort. Always prioritize stability and secure locking over the easiest, fastest fix to keep the rig safe and functional for the long haul.