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Dog Size Chart
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Shetland Sheepdog size chart: crate, harness & collar

What the published charts say for a Shetland Sheepdog, across 19 harnesses, 6 crates and 7 collars. Every answer says how it was reached, and none of them replaces measuring your dog.

Note: AKC gives one height range for both sexes; copied to male and female.

Note: AKC gives one weight range for both sexes; copied to male and female.

Adult Shetland Sheepdog

Height at the shoulder
13–16 in33–40.6 cm
Adult weight
15–25 lb6.8–11.3 kg
Chest girth
19.7–21.7 in50–55.1 cm
Neck
15.7–17.7 in39.9–45 cm

AKC prints: “Height: 13-16 inches”, “Weight: 15-25 pounds”.

Source: AKC breed page, checked Nov 4, 2026.

Source: TARIGS, "Size table for different breeds" (breed row: Shetland Sheepdog (Sheltie); inch values as printed, converted by TARIGS from cm; not sex-specific), checked Nov 4, 2026. Girth is a published chart range, not a breed-standard measurement, and is not split by sex.

These are published breed figures, not your dog. Measure your dog — chest girth for a harness, neck for a collar, length and height for a crate.

Harness sizes

Harnesses sized for a Shetland Sheepdog
Harnesses (19)SizeHow it was worked out
Julius-K9 IDC PowerharnessMini-Mini or Miniby chest girthBetween sizes. Check the maker’s chart before you buy.
Ruffwear Front Range HarnessXSby chest girth
Ruffwear Flagline HarnessXSby chest girth
Ruffwear Web Master HarnessXSby chest girth
Kurgo Tru-Fit Smart Harness (quick release)Small or Mediumby chest girthBetween sizes. Check the maker’s chart before you buy.
PetSafe Easy Walk HarnessSmall or Small / Mediumby chest girthBetween sizes. The maker says: “If your dog is between two sizes, choose a size up.”
PetSafe Easy Walk 3 in 1 HarnessSmallby chest girth
Rabbitgoo ControlPro No-Pull Harness (ControlPro series)S to XL (4 sizes)by chest girthBetween sizes. Check the maker’s chart before you buy.Rabbitgoo’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
Blue-9 Balance HarnessS or Mby chest girthBetween sizes. Check the maker’s chart before you buy.
2 Hounds Design Freedom No-Pull Harness5/8" XSmall or 5/8" Smallby chest girthBetween sizes. The maker says: “choose the SMALLEST size that fits the chest measurement”
Wild One Classic Cushioned Dog Harness (with neck buckle)S or Mby chest girthBetween sizes. The maker says: “in between sizes, size up”
Wild One Step-In Dog HarnessMby chest girth
Voyager (Best Pet Supplies) Step-In Air Pet HarnessL or XLby chest girthBetween sizes. Check the maker’s chart before you buy.
Gooby Comfort X Head-In HarnessL or XLby chest girthBetween sizes. The maker says: “between sizes, size up”
Puppia RiteFit Harness (PAJA-AC617)M to XL (3 sizes)by chest girthBetween sizes. Check the maker’s chart before you buy.Puppia’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
Puppia Soft Harness (PDCF-AC30)M to XL (3 sizes)by chest girthBetween sizes. Check the maker’s chart before you buy.Puppia’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
Chai's Choice Outdoor Adventure Dog Harness (3M reflective)Sby chest girth
Embark Adventure No-Pull HarnessSMALLby chest girth
Carhartt Training Dog Harness (Nylon Duck Training Harness, PH0341)SMALLby chest girth

Where a size reads as a span, the breed’s published range reaches across that many of the maker’s sizes. This site shows the span rather than choosing one for you.

Crate sizes

Crates sized for a Shetland Sheepdog
Crates (6)SizeHow it was worked out
MidWest Homes for Pets iCrate Single Door Folding Dog Crate24-inchby weightMidWest Homes for Pets lists the outside of the box; the usable inside is smaller.
MidWest Homes for Pets LifeStages Single Door Dog Crate24-inchby weightMidWest Homes for Pets lists the outside of the box; the usable inside is smaller.
Petmate Sky Kennel21" or 28"by weightBetween sizes. Check the maker’s chart before you buy.
Diggs Revol Collapsible Dog CrateSmallby weight
Impact Dog Crates Collapsible Dog CrateSizes by measurement onlyImpact Dog Crates publishes no dog weight. Use the crate calculator.estimated interior, about ½ in smaller than Impact’s exterior size (Impact’s own note)
Frisco (Chewy) Fold & Carry Single Door Collapsible Wire Dog CrateSmallby weightFrisco (Chewy) lists the outside of the box; the usable inside is smaller.

Every crate row above is by the maker’s weight guidance, because no published body length exists per breed. A crate is sized on the body: use the calculator below with your own measurements.

Collar sizes

Collars sized for a Shetland Sheepdog
Collars (7)SizeHow it was worked out
Ruffwear Front Range Collar14"-20"by neck girth
Blueberry Pet Classic Solid Color Adjustable Dog CollarS or Mby neck girthBetween sizes. Check the maker’s chart before you buy.
PetSafe Martingale CollarMedium (3/4 inch) to Large (3 sizes)by neck girthBetween sizes. Check the maker’s chart before you buy.PetSafe’s sizes overlap, so one dog can fall in several. Measure your dog’s neck and check the maker’s chart.
Max and Neo Martingale All Nylon Dog CollarSmall or Mediumby neck girthBetween sizes. Check the maker’s chart before you buy.
Wild One Waterproof Dog CollarLargeby neck girth
2 Hounds Design Side Release (Buckle) Collar / Buckle MartingaleMD or LGby neck girthBetween sizes. Check the maker’s chart before you buy.
Carhartt Dog CollarMEDIUMby neck girth

Where a size reads as a span, the breed’s published range reaches across that many of the maker’s sizes. This site shows the span rather than choosing one for you.

Puppy?

Size for the adult and use a divider. A crate bought to fit a puppy is outgrown in weeks, and a crate with a spare end stops working as a den. Buy the adult size and move the divider back as the dog grows. A harness or collar is the opposite: buy for the dog you have now, because adult-sized straps slip on a puppy.

Is your dog a mix?

Mixes vary a lot. Measure your dog. A breed figure describes a published standard, and a mix is not held to one. Two dogs from the same litter can land two sizes apart on the same chart.

Measure your Shetland Sheepdog

The tables above start from a published breed range. This starts from your dog. Crates need a body length and a standing height, plus 4 in of room.

Size your Shetland Sheepdog

Enter what you have measured. Every answer below is the maker’s own published range against your number — a starting point, not a fitting.

Published range for the Shetland Sheepdog: 19.7 to 21.7 in chest, 15.7 to 17.7 in neck (TARIGS, "Size table for different breeds").

Measure your dog and enter it. A published range is a range: the boxes below stay empty because the middle of a range is a number nobody published. Full Shetland Sheepdog size chart

Where to put the tape. Leave a box empty and the answers that need it say so, rather than guessing.

Enter a measurement above to see what each maker's chart says.

Sizes come from each maker’s own published chart. Check the maker’s current chart before you buy: charts change, and nothing here is a guarantee of fit.

Common questions

What size harness for a Shetland Sheepdog?
On the charts published by their makers, a Shetland Sheepdog comes out at Julius-K9 IDC Powerharness Mini-Mini or Mini, Ruffwear Front Range Harness XS, Ruffwear Flagline Harness XS (by published chest girth), with 19 of 19 charts giving a size. Size labels are not comparable between brands, so read the range rather than the letter. Measure your dog's chest girth at the widest part of the rib cage and check it against the maker's own chart before you buy.
What size crate for a Shetland Sheepdog?
By the makers' own weight guidance, a Shetland Sheepdog comes out at MidWest Homes for Pets iCrate Single Door Folding Dog Crate 24-inch, MidWest Homes for Pets LifeStages Single Door Dog Crate 24-inch, Petmate Sky Kennel 21" or 28". Weight is the rougher route: a crate is sized on the body. Measure your dog from the nose to the base of the tail and from the floor to the top of the head while standing, add 4 inches to each, and compare that with the crate's interior, not its outside.
How big does a Shetland Sheepdog get?
An adult Shetland Sheepdog is 13–16 in tall at the shoulder, 15–25 lb. Published sizing charts give a chest girth of 19.7–21.7 in and a neck of 15.7–17.7 in. These are breed-standard ranges, not your dog: individual dogs sit outside them. Measure your dog.

Breeds in the same size group on this site. The group is worked out here from adult male weight; it is not an AKC category.

Compare every chart instead: harness size charts, crate size charts, collar size charts.