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For dogs and cats of all sizes, from small breeds to extra-large pets, VEVOR has a wide selection of flap pet doors. Our selection includes weatherproof dog doors, wall entry pet door systems, and pet safe doors for dogs with advanced security features. Whether you install VEVOR’s flap pet doors through interior walls or exterior brick, or need a solution for a multi-pet household, they are designed to provide durability, comfort, and freedom for your pets.
Does your dog frequently scratch at the door when it wants to go outside? Pet doors eliminate this problem while allowing your pets to move easily between indoor and outdoor spaces. VEVOR's wall flap pet door makes it easy for pets to get in and out of the house without compromising your home's security, using too much energy, or having to open and close doors all day long.
If you choose the right flap pet door size, your pet will be able to go through easily and comfortably, and your home will stay warm and safe.
If you take accurate measurements, you won't end up buying a door that's too small or too big for your pet. Measure the width of your pet's shoulders at their widest when standing up straight. This is the minimum flap width that you need. To find the right flap height, measure from the floor to the top of your pet's shoulders. To ensure there is enough space, add 2 to 3 inches to both measurements. This is especially important for pets with long hair or thicker coats. To find the right step-over height, measure from the ground to your pet's chest or belly. Most dogs and cats are more comfortable with step-overs that are no more than half their shoulder height. Puppies and kittens need special care because they will grow. Think about what size adult they will be when choosing a flap pet door to avoid having to buy a new one in a few months.
Most pet doors designed for animals under 40 pounds feature flap openings measuring approximately 6 × 7 inches for cats and small dogs and 10 × 12 inches for medium-sized breeds such as Beagles or Cocker Spaniels. If you don't have much room, these small units work well for mounting on inner walls. The small to medium-sized weatherproof dog doors from VEVOR have flexible plastic flaps that close gently to protect sensitive or older pets. It saves more energy because less conditioned air escapes when pets enter and leave through the smaller hole. Weight-activated systems in this group can usually handle pets weighing 5 to 40 pounds, and the sensitivity settings can be adjusted so that pets of different sizes can use the same door. For extra draft protection in climate-controlled homes, think about adding brush seals around the flap's edges.
VEVOR offers flap pet doors with openings from 12x16 inches to 15x20 inches for dogs like German Shepherds, Golden Retrievers, and Labrador Retrievers weighing between 40 and 100 pounds. When strong, active dogs use these wall-entry pet door systems repeatedly, the frames don't break. Heavy animals can push on the flaps, but the stronger, longer-lasting materials, often two-layer constructions with insulation, keep the seal intact. Extra-large models can fit large breeds like Great Danes, Mastiffs, or Saint Bernards that weigh more than 100 pounds, and some have openings measuring 18x24 inches or larger. Even if you have a small pet, these larger sizes are better for homes with multiple pets because more animals can fit through at once, even when the doors are busy in the morning or evening.
Selecting a single flap pet door can be challenging for households with dogs of significantly different sizes. As a general rule, you should get a size that fits your biggest pet. However, this could be a problem if you have other animals that are much smaller. Adjustable step-over heights help accommodate pets of varying sizes, making access easier for smaller animals. Some pet owners install two separate pet doors in the walls at different heights, one for small animals and one for larger dogs. Another thing to think about is training. Introducing all pets to the new door early can help reduce territorial behavior and prevent larger animals from blocking access. Programmable choices let you make automatic doors that sense your pet's weight and fit their specific needs.
Understanding installation methods and security features helps you choose a flap pet door that balances convenience, home security, and structural integrity.
Installing pet doors on walls is more difficult than installing them on doors, but they provide permanent, dedicated entry points. When installing weatherproof doggy doors on the exterior of a wall, choose ones with heavy-duty frames, deep weatherstripping, and safe closing mechanisms. VEVOR's wall entry pet door kits come with aluminum tunnels that can pass through walls approximately 4 to 12 inches thick, supporting standard frame construction as well as brick, stucco, or concrete. Cutting a hole, installing the tunnel frame, and securing the inside and outside frames with the tools provided are all part of the installation process. Most models have sliding lock panels or rotating covers that completely close the opening at night or while traveling for safety. Some models feature RFID-activated doors that open only for pets wearing compatible collar tags. This keeps wild animals and neighborhood animals from getting in.
VEVOR offers high-quality pet access solutions at reasonable prices, with a wide range of sizes to fit any breed or home setup. Our outdoor dog doors are durable and energy conscious. They also have security features that keep your home safe without limiting your pet's freedom. For professional results, each wall-entry pet door comes with full hardware and thorough installation instructions. You can browse VEVOR's full range of pet-safe doors for dogs and cats to find the best one for your pet's freedom and your peace of mind.
