Most sizing mistakes happen the same way: someone looks at their dog, eyeballs the neck, guesses "large" and orders. The chain arrives, it either chokes the dog or slides off completely, and back it goes.
Measuring correctly takes under two minutes. Here's how to do it right the first time.
What You Need
A soft measuring tape (the kind used for sewing) or a piece of string and a ruler. Nothing else. Your dog doesn't need to be still — you just need a few seconds of access to the neck.
The Measuring Process
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1
Find the base of the neck
Place the measuring tape at the base of the neck — where the collar would actually sit, not at the top of the neck near the head. This is where chains and collars ride, and it's typically wider than mid-neck.
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2
Wrap and note the snug measurement
Wrap the tape around the full circumference. Pull it snug — not tight, but with no slack. You should be able to slide two fingers underneath. Note this number in inches.
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3
Add the right buffer
For collars: add 1–2 inches. For chains: add 2–3 inches. The extra length is what creates proper drape and prevents the chain from pressing into the neck. Chains are meant to hang loosely, not lay against skin like a collar.
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4
When in doubt, size up
If you land between sizes, go one up. A chain that's slightly loose looks intentional. One that's too tight looks uncomfortable — because it is.
Size Reference by Breed
Use this as a starting point, not gospel. Weight and build vary significantly within breeds.
| Breed Examples | Typical Neck (snug) | Recommended Chain Length | Suggested Width |
|---|---|---|---|
| Chihuahua, Yorkshire Terrier | 8–10" | 10–12" | 6–8mm |
| French Bulldog, Pug, Corgi | 12–15" | 14–17" | 8–12mm |
| Golden Retriever, Labrador, Husky | 16–20" | 18–22" | 10–15mm |
| Pitbull, American Bully, Rottweiler | 18–24" | 21–27" | 15–20mm |
| Great Dane, Mastiff, Saint Bernard | 22–30" | 25–32" | 18–22mm |
Chain width matters as much as length. A wide chain on a small dog looks disproportionate and puts unnecessary weight on a small neck. A narrow chain on a large breed looks thin and out of place. Match the width to the breed proportions, not just to your personal preference.
Cuban Links vs. Rolo Chains: Does Sizing Differ?
Yes, slightly. Cuban links have a heavier, wider link construction. If you're ordering a Cuban Link for the first time, we recommend going one step longer than a standard collar you already know fits — the added length accounts for the link weight pulling down slightly on the chain.
Rolo-style and box chains — like the Rope Chain — are lighter and more flexible, so they behave more like a standard collar when sizing.
The Two-Finger Rule: Quick Safety Check
Once your chain or collar arrives — whether it's a Leather Classic, Tactical Black, or a chain — put it on your dog and run two fingers vertically between the chain and the neck. You should be able to slide them in without forcing it. If you can't, it's too tight. If your whole hand slides through easily, it's too loose.
This check takes five seconds and tells you everything you need to know.
Puppies: Measure Now, Remeasure in 6 Weeks
Puppies grow fast. If you're buying for a dog under 18 months, size up by an extra inch and plan to remeasure at 6 weeks. What fits perfectly today won't fit in two months. For fast-growing large breeds, some owners prefer to wait until 6–8 months before buying a chain — they'll go through two or three sizes in the first year.
Ready to Order?
Now that you have your measurement, browse our full chain and collar collection. All sizes listed are chain length — measure first, order confident.
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