NO GAPS. NO CHEWING. NO MICE.

DESIGNED TO ADAPT TO REAL-WORLD SURFACES — NOT JUST PERFECT PAVEMENT

Mouse chewing on car engine wires

MICE AND RATS CAUSE VEHICLE OWNERS MILLIONS IN RODENT-RELATED REPAIRS EVERY YEAR

From chewed wiring to shredded upholstery, contaminated HVAC units, droppings, nesting debris, and more, a single mouse can wreak havoc on a parked car or RV in no time. And for many reasons, repair costs can be shockingly expensive.

READY TO PROTECT YOUR CAR?

WHAT IS THE BOX-KAT MOUSE BARRIER?

NO. 1 MOUSE DETERRENT FOR CARS, VANS, RVs, AND MORE

The Box-Kat is the easiest and most reliable way to protect your vehicle from mouse-related damage. With its upgraded flex-panel design and improved stability system, it forms a foolproof barrier that keeps mice and other small rodents from burrowing into the underside of your car, truck, RV, or trailer. Built to handle uneven surfaces and tough conditions, the Box-Kat goes up quickly, stays in place, and delivers long-lasting protection. No poisons, no traps — just simple, effective peace of mind. Never worry about chewed wiring or mouse droppings again.

TESTIMONIALS

  • Christopher (crimdom.net)

    "It’s called the 'BoxKat'. I ordered it in May and tested it over the summer and fall. It’s a flexible/collapsible barrier for keeping rodents out of a given area (like your car or RV). It’s a little expensive but it does seem to work..."

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  • Laura

    I set it up the day it arrived. I have seen no evidence of mouse droppings on my car battery which is where I usually spot them. They have gotten inside my car and shredded an empty egg carton prior to my order ... We live out in the high desert country in the middle of nowhere so we have lots of mice ... I am so sick of rodents I am ready to become a city slicker!!! Thanks for your invention praying it keeps working.

    Grass Valley, Oregon

  • "This is one of those ideas where it’s a very simple solution to a common problem. And it’s probably one where I’m sure there are more than a few folks asking, “Why didn’t I think of that?” Well, Tom Sharp did—and we RVers are the beneficiaries."

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Black classic car parked inside BOX-KAT mouse barrier inside a garage

ADAPTS TO UNEVEN SURFACES

FLEX-PANEL TECHNOLOGY

Box-Kat’s patented flex-panel technology doesn’t just form a barrier — it seals off gaps other barriers miss. Designed for garages, gravel, dirt, and more, our panels contour to the ground to block even the smallest entry points. Standing 14 inches tall, these durable plastic panels are also engineered to stop mice from climbing or leaping over, giving your vehicle full 360° protection.

White RV parked outdoors inside a box-kat mouse barrier

INDOOR & OUTDOOR USE

STORE YOUR VEHICLE WITH CONFIDENCE

Whether you're safeguarding a golf cart or a 45-foot motorhome, the Box-Kat’s versatile design scales effortlessly to provide complete coverage. Perfect for personal cars, family RVs, or any vehicle stored for extended periods, the Box-Kat ensures your investment stays protected, no matter the size.

With proper bracing, the Box-Kat is effective even in outdoor weather conditions. Learn more on our assembly page!

Vintage el camino parked inside a Box-Kat mouse barrier inside a garage

EASIER IN-AND-OUT ACCESS FOR

DAILY DRIVERS

A set of wing-nut screws is included with every kit, giving daily drivers a quick-access point. Just loosen the designated panel connection to open and close your setup with ease — perfect for anyone who needs to come and go regularly.

Mice failing to climb over Box-Kat panel walls

NATURAL RODENT PREVENTION

HARMLESS, NON-TOXIC MOUSE DETERRENT

Box-Kat creates a simple but impenetrable line mice can’t climb, chew, or burrow through. No toxins, no killing, no harmful side effects — just proven prevention that keeps your vehicle safe and rodents where they belong: outside.

By stopping infestations before they start, Box-Kat protects both your vehicle and the environment in a way no spray, trap, or bait ever could.

Box-Kat Mouse Barrier for home

Protect more than your car

RODENT PROOF YOUR HOME & STORAGE

Whether for personal or professional use, the Box-Kat’s durable components and simple setup makes it a reliable solution for safeguarding more than just your vehicle. Perfect for your home, porch, garage, or shed, the Box-Kat ensures your property remains safe and pest-free.

Business owners can also add an invaluable layer of protection to their inventory and equipment by using the Box-Kat around storage units, loading docks, warehouses, and more.

SECURE YOUR KIT TODAY!