Choosing the Right Crate Size for Your Dog: Measuring and Setup
By UPCO Pet Supplies | Small Business Pet Shop in St. Joseph MO | Published: 2026-09-23
Category: Buying Guides
Measure length and height, then add 2–4 inches to pick a crate your dog can stand, turn, and lie flat in. Here's how to size, set up, and avoid the most common mistakes.
Quick answer
Measure your dog from the tip of the nose to the base of the tail (length) and from the floor to the top of the head or ears (height). Add 2–4 inches to each measurement. Choose a crate where your dog can stand without crouching, turn around, and lie flat. If your dog is still growing, size up and use a divider panel to shrink the space until they're full-grown.
A crate that's too small forces your dog to hunch, and one that's too large can undermine house training. The right dog crate size comes down to two measurements and one simple rule: stand, turn, lie flat. This guide walks you through measuring at home, choosing between crate styles, and setting up a space your dog will actually use.
You'll also see how to adjust as a puppy grows, where to place the crate, and which accessories make the setup safer and easier to clean. If you're shopping for a crate for large dogs, the same rules apply — you just need to double-check door height and pan fit.
How to measure your dog for a crate
Use a soft tape measure or a piece of string and a ruler. Measure length from the tip of the nose to the base of the tail while your dog stands naturally. Measure height from the floor to the top of the head (or the tips of the ears if they stand up). For width, measure across the shoulders at the widest point.
Write down all three numbers. Then add 2–4 inches to length and height. That extra room lets your dog stand without hitting the top and turn around without scraping the sides. If your dog is between sizes, always size up — a crate that's slightly too big is safer than one that's too small.
- Measure while standing, not lying down.
- Add 2–4 inches to length and height.
- If in doubt, size up and use a divider.
Crate styles and what they mean for sizing
Wire crates are the most adjustable: most come with a divider panel, so you can shrink the space for a puppy and expand it as they grow. They also offer good airflow and visibility. Plastic kennels (often called airline crates) are more enclosed and can feel den-like, but they're harder to resize — you buy a fixed size. Soft-sided crates are lightweight and great for travel, but they're best for dogs who don't chew or push hard on the walls.
For a crate for large dogs, check the door opening and the pan dimensions. A crate can be long enough but have a door that's too low for a tall dog to walk through comfortably. If you're buying online, compare the interior dimensions to your measurements, not the exterior footprint.
- Wire crate with divider = best for puppies and growing dogs.
- Plastic kennel = good for travel and den-like feel, but fixed size.
- Soft crate = light and portable, not for heavy chewers.
Crate training setup: where and how
Place the crate in a room where the family spends time, not isolated in a garage or basement. Dogs are social, and a crate in the middle of things feels like a safe spot rather than a punishment. Keep the area draft-free and away from direct heat sources.
Line the crate with a washable bed or mat that fits the floor pan. For puppies, start with just enough space to stand, turn, and lie down — a divider helps. Feed meals in the crate, toss treats inside, and leave the door open during the day so your dog can choose to go in. Never use the crate as a time-out spot.
- Put the crate where people hang out.
- Use a divider to adjust space as your puppy grows.
- Feed and treat inside the crate to build positive association.
Common sizing mistakes and how to avoid them
The most common mistake is buying a crate that's too small because it looks right in the photo. Always trust your measurements over breed labels. Another mistake is leaving a crate too large for a young puppy — that gives them room to eliminate in one corner and sleep in another, which slows house training. Use a divider to keep the space appropriate.
Finally, don't forget height for tall breeds. A dog who can't stand upright will be uncomfortable and may try to escape. If your dog is at the top of a size range, move up to the next size.
- Don't rely on breed labels — measure your individual dog.
- Use a divider for puppies to prevent accidents.
- Check standing height, not just length.
Decision rules for choosing a crate size
- Puppy still growing: Buy the adult size crate with a divider panel. Start with just enough room to stand, turn, and lie down, then expand as your puppy grows. Divider = fewer accidents and no second purchase.
- Adult dog, measured: Add 2–4 inches to length and height. Choose the next size up if your dog is between sizes or has a thick coat. Stand, turn, lie flat — no crouching.
- Large or giant breed: Check door height and interior width, not just length. A crate that's long enough may still be too short at the door. Measure the door opening before you buy.
- Travel or car use: A plastic kennel or crash-tested crate is usually safer than a wire crate in a vehicle. Match the kennel size to your dog's measurements. Travel crates need a snug fit, not extra room.
Products that support crate setup and cleanup
- Mutt Mitt Dog Waste Bags 100 Ct: Insulated, disposable mitts that are degradable, non-toxic, and field tested to hold water for 10 days without leaking. Crate training often means more frequent potty breaks. Keeping waste bags by the door makes cleanup quick and hygienic.
- Kaytee Large Hi-Corner Litter Pan for Cages: High sides contain mess and the pan is easy to clean; sized for bigger pets and cages. If you also keep small animals, a high-sided pan can double as a crate accessory or bedding tray to contain spills and shavings.
- Davis Chlorhexidine Spray 4% Chlorhexidine Gluconate 8 oz: Non-stinging spray for localized relief of hot spots, inflamed skin, and insect bites; can be used between baths. Crate-confined dogs can develop skin irritation from lying on damp or dirty bedding. This spray helps manage minor skin issues without a full bath.
Is this crate right for your dog?
Best for
- Owners who want a crate that supports house training and travel
- Dogs who are comfortable in an enclosed space and need a den-like retreat
- Puppies and growing dogs when a divider panel is used
Not for
- Dogs with severe separation anxiety who injure themselves in crates — consult a vet or trainer first
- Owners who plan to leave a dog crated for long workdays without a break
- Dogs who need constant visual access to the room — a wire crate or pen may be better
Measure twice, size up when in doubt, and use a divider to adapt as your dog grows. A well-fitted crate becomes a safe, calm spot — not a cage. If you're local to St. Joseph, stop by UPCO Pet Supplies to compare crate sizes in person before you buy.


