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The short answer: It depends on your dog’s needs and your lifestyle. Wire crates are great for home use, offering better ventilation and visibility, while plastic crates are superior for travel and anxious dogs that need a cozy, den-like space. Both have pros and cons, so let’s break down the key differences to help you decide.
Wire crates are essentially open on all sides, providing excellent airflow and a full view of the surroundings. This makes them ideal for dogs who like to see what’s going on or need extra airflow in warm climates. However, some dogs may feel overexposed and anxious in a wire crate because they can’t hide.
Plastic crates typically have solid sides with ventilation windows on the top and sides. This creates a more enclosed, den-like environment that many dogs find calming. It also blocks visual stimuli, which can help reduce stress in reactive or easily overstimulated dogs. But the reduced airflow means you need to ensure the crate is well-ventilated and not placed in direct sunlight, especially in hot weather.
Wire crates are usually made of sturdy metal, which generally resists chewing and scratching better than plastic. However, determined chewers can bend or break wire welds, especially on cheaper models. Also, wire crates can have sharp edges if damaged.
Plastic crates are molded from heavy-duty plastic, which is tough but not indestructible. A determined chewer can gnaw through the plastic, especially around the ventilation holes. Many plastic crates are not suitable for destructive chewers unless they are specifically reinforced (like those approved for airline travel). If you have a power chewer, look for a crate with a metal frame or a heavy-duty option.
If you travel frequently with your dog, a plastic crate is often the better choice. Many are approved by airlines and fit under airplane seats or in cargo holds. They are also lighter and have handles, making them easier to carry. Wire crates are heavy and awkward to transport, and they are not suitable for air travel unless they are specially designed.
For car travel, a plastic crate provides a safer, more secure environment because it blocks distractions and can be strapped in with a seatbelt. Wire crates can be used in cars but offer less protection in a crash and can allow items to fly in and hit your dog.
Wire crates usually come with a pan tray that slides out, making cleanup a breeze. They also fold flat for storage, which is convenient if you need to put the crate away when not in use. However, wire crates can be harder to clean if your dog has accidents because urine can drip through the wires and stain the floor.
Plastic crates are typically one-piece or two-piece assemblies that are easy to wipe down with a damp cloth. They do not have a removable tray, so you may need to clean the entire bottom. They are also not foldable, so they take up more space when stored.
Wire crates allow you to place a bed or blanket without the risk of it being pulled through the bars, but they offer less privacy. Many dogs feel more secure in a plastic crate because it’s like a cave. This can be especially helpful for puppies during house training or for dogs that are anxious in new environments.
However, some dogs prefer the openness of a wire crate because they can see their family. If you have a dog that gets anxious when separated, a wire crate in the main living area might be better. You can always cover a wire crate with a blanket to create a den-like feel, but this reduces ventilation, so monitor the temperature.
In general, wire crates are more affordable, especially for larger sizes. Plastic crates tend to be slightly more expensive, but they often come with additional features like handles and tie-down loops. When comparing cost, consider the durability and the specific needs of your dog. A cheap wire crate that needs replacing in a year is not a good value compared to a slightly pricier plastic crate that lasts for years.
For a comprehensive comparison of the best dog crates on the market, check out our buying guide.
Getting the size right is critical for your dog’s comfort and safety, and the approach differs between wire and plastic crates. For a wire crate, measure your dog’s height from the floor to the top of the head (or ears, if they stand up) and add 2 to 4 inches. Measure length from the tip of the nose to the base of the tail and add 2 to 4 inches. This ensures your dog can stand, turn around, and lie down without hitting the sides. Wire crates often come with adjustable dividers, which are useful for puppies: you can give them just enough space and expand it as they grow, which helps with house training.
For a plastic crate, you cannot rely on external dimensions alone because the interior is smaller due to the molded walls. Always check the manufacturer’s size chart, which typically lists the maximum dog weight and dimensions. A common mistake is buying a plastic crate that is too small because the exterior looks roomy. Also, note that airline-approved plastic crates have specific size requirements, so if you plan to fly, verify the crate meets your airline’s rules before buying. If your dog is between sizes, size up for wire but consider staying with the smaller size for plastic if your dog is anxious, as a snugger fit can feel more secure. However, never go so small that your dog cannot stand or turn around.
Even with the right crate, owners often make mistakes that can affect their dog’s comfort and safety. One frequent error is using the crate as punishment. The crate should be a positive place, associated with treats, toys, and calm downtime. If you only put your dog in the crate when they are naughty, they will learn to dread it. Another mistake is leaving a dog crated for too long without a break. Puppies need frequent potty breaks, and adult dogs should not be crated for more than a few hours beyond their physical needs. Always follow a schedule that includes exercise and bathroom opportunities.
With wire crates, a common mistake is not securing the pan tray. Some dogs can pull the tray out and chew it, or it can slide out if the crate is moved. Look for a crate with a locking mechanism or secure the tray with a latch. Also, avoid placing the crate in direct sunlight or near heat sources, as wire crates offer little insulation. With plastic crates, a frequent mistake is not providing enough ventilation. Even though they have vents, air circulation is limited, so never cover a plastic crate completely with a blanket, and avoid leaving your dog in a plastic crate in a hot car or sunny room. Another mistake is assuming a plastic crate is chew-proof. If your dog is a determined chewer, they can damage the plastic and potentially escape or injure themselves. Always supervise initially and consider a reinforced crate if needed.
While wire and plastic crates cover most situations, there are times when another type of crate or containment might be more suitable. If you have a dog that is an escape artist or a severe chewer, a heavy-duty metal crate with reinforced bars and welds may be necessary. These are often used for dogs with separation anxiety or those who have broken out of standard crates. They are heavier and more expensive, but they provide greater security.
For dogs that are not comfortable in enclosed spaces, a soft-sided crate or a playpen might be a better option. Soft-sided crates are lightweight and portable, but they are not chew-proof and are best for calm dogs. Playpens offer more space and can be configured in different shapes, but they are not ideal for dogs that jump or climb. If you travel frequently by air, a plastic crate is usually required, but if you need a crate for home and occasional car travel, a wire crate with a crash-tested carrier might be a better investment. Ultimately, consider your dog’s temperament, size, and your lifestyle before deciding. Some owners find that having both a wire crate for home and a plastic crate for travel works best.
Yes, plastic crates are safe as long as they are properly sized and well-ventilated. They are often used for air travel and are designed to meet safety standards. However, they are not chew-proof, so supervise your dog initially.
Wire crates can be used for car travel, but they are not ideal for air travel. They are bulkier and offer less protection in an accident. For air travel, you’ll need an airline-approved plastic crate.
Your dog should be able to stand up, turn around, and lie down comfortably. For wire crates, measure your dog’s height and length. For plastic crates, check the manufacturer’s size chart, as they may have specific recommendations.
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