Kong Toys for Dogs: Complete Sizing and Stuffing Guide for Canadian Owners

Few dog toys have earned the trust that Kong has. The classic red rubber Kong has been a fixture in Canadian homes for decades, and for good reason — it's one of the toughest, most versatile enrichment tools you can buy. But choosing the right size and knowing how to stuff it properly makes the difference between a chew toy your dog ignores and one that keeps them busy for an hour. This dog toys buyer's guide walks GTA owners through Kong sizing, the Classic vs Extreme decision, and our favourite stuffing recipes. You can browse our full Kong toy selection anytime.

Key Takeaway: Match the Kong to your dog's weight and chew strength first, then use stuffing and freezing to extend playtime. A properly sized, frozen Kong can occupy a dog for 30–60 minutes and doubles as a slow feeder.

What is the right Kong dog toy size for my dog?

The right Kong size is based on your dog's body weight and jaw strength. Kong makes six sizes: X-Small (under 5 lbs / 2.3 kg), Small (up to 20 lbs / 9 kg), Medium (15–35 lbs / 7–16 kg), Large (30–65 lbs / 14–29 kg), X-Large (60–90 lbs / 27–41 kg), and XX-Large (over 85 lbs / 39 kg). Always size up if your dog is a strong chewer.

Getting the size right matters for safety. A Kong that's too small can become a choking hazard, while one that's too large is hard for smaller dogs to grip and empty. In our store we see customers guess by breed alone — but a lean 55 lb Border Collie and a stocky 55 lb Bulldog often do better with different sizes because of how they chew.

Kong toy size chart by weight

• X-Small — dogs under 5 lbs (2.3 kg), such as teacup breeds
• Small — dogs up to 20 lbs (9 kg), like Yorkies and small terriers
• Medium — dogs 15–35 lbs (7–16 kg), like Beagles and Cocker Spaniels
• Large — dogs 30–65 lbs (14–29 kg), like Border Collies and Boxers
• X-Large — dogs 60–90 lbs (27–41 kg), like Labradors and German Shepherds
• XX-Large — dogs over 85 lbs (39 kg), like Great Danes and Mastiffs

Our team at Ashario Pets recommends bringing your dog's current weight when you shop. Puppies grow fast, so many owners on the Yonge-Finch side of North York end up buying two sizes over a dog's first year. When in doubt, our staff will help you match a Kong to your dog's jaw in person.

What's the difference between Kong Classic and Kong Extreme?

The Kong Classic (red rubber) suits average chewers, puppies, and seniors, while the Kong Extreme (black rubber) is a firmer, more durable formula built for powerful chewers who destroy softer toys. Both use non-toxic natural rubber and share the same hollow, stuffable design — the difference is entirely in rubber density and durability.

If your dog has ever shredded a plush toy in minutes or gone through a "tough" rubber toy in a week, the Extreme is the safer bet. Pet owners tell us their Labs and Pit mixes get months out of an Extreme where a Classic lasted only weeks. For gentle mouthers, the softer Classic rubber is actually kinder on teeth and gums.

There are other Kong lines worth knowing. The Kong Puppy (teething-friendly rubber) suits dogs under nine months, and the Kong Senior uses a gentler purple rubber for older mouths. According to the American Kennel Club, providing appropriate chew outlets helps reduce destructive behaviour, and matching the toy to life stage supports dental health along the way.

What's the best Kong for aggressive chewers?

The Kong Extreme is the best choice for aggressive chewers, thanks to its ultra-firm black rubber that resists tearing far better than the Classic. For dogs that treat every toy as a demolition project, size up one level beyond the weight chart to add extra rubber thickness and reduce swallow risk.

No rubber toy is truly indestructible, and even the Extreme should be supervised and replaced once it shows chunks or deep cracks. The American Veterinary Medical Association notes that swallowed toy fragments are a common cause of intestinal blockages, so damaged toys should be discarded immediately. Our nutrition experts at the North York store always remind chew-heavy customers that even the toughest toy needs a weekly inspection.

Pair a durable Kong with the right chews and treats for a full enrichment routine. Many customers combine a stuffed Kong with a dog treat or chew for variety — freeze-dried treats from Canadian brands like Crumps' Naturals crumble nicely into stuffing mixes.

How do I stuff a Kong? (Recipes and difficulty levels)

To stuff a Kong, plug the small hole with a soft treat or a dab of nut butter, layer in kibble and moist food, then top and freeze for a longer challenge. A frozen, well-stuffed Kong keeps most dogs busy for 30–60 minutes versus 5–10 minutes for a loosely packed one. Match difficulty to your dog's experience.

Start easy so your dog learns the toy is worth working at. Once they've got the hang of it, freeze the whole thing to ramp up the challenge and cool them down on a hot Toronto summer day. Our team sees a lot of separation-anxiety and crate-training questions where a frozen Kong becomes the daily routine anchor.

Beginner stuffing (easy)

• Loosely fill with your dog's regular dry dog food (about 1/4 to 1/2 cup depending on Kong size)
• Smear a small amount of xylitol-free peanut butter around the wide opening
• No freezing — let your dog win quickly to build interest

Intermediate stuffing (moderate)

• Layer kibble with a spoonful of wet food or plain canned pumpkin
• Add a few crushed freeze-dried treats for scent and value
• Plug the tip with a soft chew and refrigerate for 30 minutes

Advanced stuffing (hard, freeze it)

• Mix mashed kibble soaked in low-sodium bone broth into a paste
• Pack tightly, seal the wide end with a dollop of plain yogurt or pumpkin
• Freeze upright overnight for a 45–60 minute enrichment session

Quick Summary: Easy stuffing = loose dry kibble, no freeze. Hard stuffing = paste-packed and frozen solid. Keep total stuffing calories under 10% of your dog's daily intake to avoid weight gain.

Watch the calories. If your dog eats 800 kcal per day, that's roughly 80 kcal from Kong fillings — about a tablespoon of peanut butter (around 90 kcal) already hits that ceiling. For weight-conscious dogs, use their measured meal kibble as the stuffing instead of extra treats. Explore ingredient options across our wet dog food and broth selection to keep fillings healthy.

Are Kong toys safe, and how do I keep my dog healthy using them?

Kong toys are considered safe when correctly sized and inspected regularly, but they are enrichment tools, not a substitute for veterinary care. Choose a size your dog can't fit fully in their mouth, avoid fillings with xylitol, onion, grapes, or chocolate, and discard any Kong with visible tears. Always supervise new chewers.

Some dogs have sensitive stomachs, so introduce new stuffing ingredients gradually. If your dog has food allergies, a chronic health condition, or is on a prescription diet, talk to your veterinarian before adding rich fillers like peanut butter or dairy. The ASPCA maintains a list of foods toxic to dogs that's worth bookmarking before you get creative with recipes.

For overall wellness support, a Kong routine pairs well with the right nutrition. Browse our dog health and wellness range and speak to our staff about matching supplements — like joint or digestive support — to your dog's needs. As of 2026, we stock 79+ brands and can help you build a complete routine in one visit.

Where can I buy Kong toys in North York and the GTA?

Ashario Pets is a premium pet supply store located at 1111A Finch Ave W, Unit 2, North York, Ontario, open 7 AM to 11 PM daily, 365 days a year. We carry Kong Classic, Kong Extreme, and other Kong toys, plus the treats, dry food, and supplements to stuff and support them.

You can shop in person or order for GTA delivery through Uber Eats, DoorDash, SkipTheDishes, Instacart, and Fantuan. Not sure which size fits your dog? Contact our North York team and we'll walk you through it. You can also review our pet store FAQ or read customer reviews before you visit.

A well-chosen Kong is one of the smartest, longest-lasting purchases you can make for a dog — it's a chew toy, a slow feeder, and an anxiety aid rolled into one piece of rubber. Get the size right, stuff it smart, and inspect it often. Your dog gets an outlet, and you get a quieter, calmer household.

Frequently Asked Questions

How do I clean a Kong toy?

Most Kong toys are top-rack dishwasher safe, or you can hand-wash them with warm soapy water and a bottle brush. Rinse thoroughly to remove all soap residue. For stubborn frozen-filling buildup, soak in warm water first. Clean after each stuffing session to prevent bacterial growth, especially in warm weather.

What size Kong do I need for a puppy?

Match the Kong to your puppy's current weight, not their expected adult size, and use the softer Kong Puppy rubber for teething mouths. A 15 lb (7 kg) puppy typically fits a Small or Medium. Since puppies grow quickly, expect to size up within a few months. Our North York staff can help you plan sizes as your puppy grows.

How many calories does a stuffed Kong add to my dog's diet?

It depends entirely on the filling. A tablespoon of peanut butter adds about 90 kcal, while plain canned pumpkin adds only around 5 kcal per tablespoon. Keep Kong stuffing under 10% of your dog's total daily calories to avoid weight gain, and use measured meal kibble as filler for weight-conscious dogs.

Is Kong Classic or Extreme better for a Labrador?

For most adult Labradors — who are enthusiastic chewers — the Kong Extreme in X-Large is the better choice for durability and safety. Gentler senior Labs or those who don't destroy toys may do fine with the Classic. Watch how your individual dog chews and size up if they're aggressive with rubber.

Can a Kong help with separation anxiety?

A frozen, stuffed Kong can help redirect mild separation anxiety by giving your dog a positive, absorbing activity when you leave. It won't cure clinical anxiety on its own. For dogs with significant distress, consult your veterinarian or a certified behaviourist, and pair the Kong with a proper training and departure routine.