Dog Coat Size Guide

Finding the perfect fit ensures your dog stays warm, dry, and comfortable in the field. Follow the simple measuring steps below to choose the right size.

How to Measure Your Dog

Use a soft tape measure and allow for a snug but comfortable fit.

1. Back Length (Topline) – Most Important
Measure from the base of the neck (where the collar sits) to the base of the tail.
This measurement determines the coat size (e.g., 35cm, 45cm, 55cm).
2. Chest Girth
Measure the widest part of your dog’s chest, just behind the front legs.
This helps ensure the coat won’t be too tight or restrict movement.
3. Neck Circumference
Measure the base of the neck where the collar naturally rests.
Useful for coats with adjustable or fixed neck openings.

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WeatherBeeta - Dog Coat Size Guide
Dog Coat Size Chart (General Guide)

Dog Coat Size

Back Length (cm)

Chest Girth (Approx.)

Example Breeds*

25cm

25cm

30–40cm

Chihuahua, Toy Poodle

30cm

30cm

35–45cm

Jack Russell, Dachshund

35cm

35cm

45–55cm

Border Terrier, Westie

40cm

40cm

50–60cm

Cocker Spaniel

45cm

45cm

55–70cm

Springer Spaniel

50cm

50cm

60–75cm

Beagle, Small Collie

55cm

55cm

65–80cm

Working Collie

60cm

60cm

70–85cm

Labrador (smaller)

65cm

65cm

75–90cm

Labrador, Golden Retriever

70cm

70cm

80–100cm

German Shepherd, Large Labs

75cm+

75–80cm

90–110cm

Large Shepherds, Giant Breeds

*Breed examples are a guide only — always measure your dog for best accuracy.

Fit Tips

  • The coat should cover the dog’s back without hanging over the tail.
  • Ensure enough room around the chest to allow natural movement.
  • Adjustable straps give extra flexibility for growing or active dogs.
  • If between sizes, choose the larger size for comfort, especially for winter layers.

How Ardmoor Dog Coats Fit

Different brands may vary slightly. Check each product description for

  • Adjustable girth straps
  • Elastic leg loops
  • Harness access points
  • Breed suitability notes

If you need help choosing, our customer service team can assist with measurements and recommendations.

CALL:  01620 671 480 or EMAIL: info@ardmoor.co.uk

Size guides