Choosing the right dog coat size is just as important as choosing the right type of coat. A poorly fitting coat can rub, slip, restrict movement, or make your dog uncomfortable — even if the coat itself is high quality.
This guide will help you measure your dog correctly and choose a coat that actually fits.
Why Dog Coat Fit Matters
A dog coat that fits properly will:
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Keep your dog warm and dry
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Allow natural movement
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Stay in place during walks
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Prevent rubbing or chafing
A coat that doesn’t fit can cause discomfort and often ends up unused.
What You’ll Need to Measure Your Dog
You only need:
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A soft measuring tape (or string + ruler)
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Your dog standing normally
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A few minutes of patience
Try to measure when your dog is calm and standing up.
The 3 Key Measurements You Must Take
1. Back Length (Most Important)
Measure from:
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The base of the neck (where the collar sits)
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To the base of the tail
This determines the overall size of the coat.
👉 Tip: Don’t include the tail itself.
2. Chest Girth
Measure around:
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The widest part of your dog’s chest
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Just behind the front legs
This measurement ensures the coat isn’t too tight or restrictive.
3. Neck Circumference
Measure around:
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The base of the neck
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Where a collar normally sits
This helps ensure comfort and prevents choking or slipping.
How to Choose the Right Size
Once you have your measurements:
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Always check the size chart for each product
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If your dog is between sizes, size up
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Prioritise chest fit over length if unsure
Different styles and brands can vary, so never assume your dog is always the same size.
Signs a Dog Coat Fits Correctly
A well-fitting dog coat should:
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Sit flat along the back
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Cover the chest without pulling
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Allow free leg movement
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Stay in place during walks
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Be easy to put on and remove
If your dog walks normally and doesn’t try to remove it, that’s a good sign.
Common Dog Coat Fit Mistakes
Avoid these common issues:
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Choosing based only on breed
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Buying too tight for a “snug look”
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Ignoring chest measurements
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Not accounting for movement
Comfort always comes before style.
Should Puppies Size Up?
Yes — puppies grow quickly.
If buying a coat for a puppy:
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Choose adjustable designs where possible
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Consider sizing up
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Avoid very tight fits
Some dogs may only use their first coat for a short time.
Getting the right dog coat size makes all the difference.
Measure carefully, check size charts, and prioritise comfort. A properly fitted coat keeps your dog warm, dry, and happy — especially during NZ’s cooler months.