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Dog Size Chart
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American Staffordshire Terrier size chart: crate, harness & collar

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

Adult American Staffordshire Terrier

Height at the shoulder
Male 18–19 in45.7–48.3 cm
Female 17–18 in43.2–45.7 cm
Adult weight
Male 55–70 lb24.9–31.8 kg
Female 40–55 lb18.1–24.9 kg
Chest girth
not published
Neck
not published

AKC prints: “Height: 18-19 inches (male), 17-18 inches (female)”, “Weight: 55-70 pounds (male), 40-55 pounds (female)”.

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

No published chest or neck girth was found for this breed. Girth is never worked out from weight or height here, so the tables below fall back to weight where a maker prints it, and say so.

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.

Sized for a male American Staffordshire Terrier

Harness sizes

Harnesses sized for a male American Staffordshire Terrier
Harnesses (19)SizeHow it was worked out
Julius-K9 IDC Powerharness0 to 2 (3 sizes)by weight only, less reliableBetween sizes. Check the maker’s chart before you buy.Julius-K9’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
Ruffwear Front Range HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Ruffwear Flagline HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Ruffwear Web Master HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Kurgo Tru-Fit Smart Harness (quick release)Largeby weight only, less reliable
PetSafe Easy Walk HarnessMedium / Large or Largeby weight only, less reliableBetween sizes. The maker says: “If your dog is between two sizes, choose a size up.”
PetSafe Easy Walk 3 in 1 HarnessMediumby weight only, less reliable
Rabbitgoo ControlPro No-Pull Harness (ControlPro series)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Blue-9 Balance HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
2 Hounds Design Freedom No-Pull Harness1" Medium or 1" Largeby weight only, less reliableBetween sizes. The maker says: “choose the SMALLEST size that fits the chest measurement”
Wild One Classic Cushioned Dog Harness (with neck buckle)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Wild One Step-In Dog HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Voyager (Best Pet Supplies) Step-In Air Pet HarnessNo sizeby weight only, less reliableVoyager (Best Pet Supplies) lists no Step-In Air Pet Harness size for over 28 lb. Check with Voyager (Best Pet Supplies).
Gooby Comfort X Head-In HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Puppia RiteFit Harness (PAJA-AC617)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Puppia Soft Harness (PDCF-AC30)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Chai's Choice Outdoor Adventure Dog Harness (3M reflective)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Embark Adventure No-Pull HarnessLARGEby weight only, less reliable
Carhartt Training Dog Harness (Nylon Duck Training Harness, PH0341)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.

Rows marked “by weight only” had no published girth to work from, so the maker’s weight bands were used. That is the weaker route, and two dogs of the same weight can need different sizes.

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 male American Staffordshire Terrier
Crates (6)SizeHow it was worked out
MidWest Homes for Pets iCrate Single Door Folding Dog Crate36-inch or 42-inchby weightBetween sizes. Check the maker’s chart before you buy.MidWest Homes for Pets lists the outside of the box; the usable inside is smaller.
MidWest Homes for Pets LifeStages Single Door Dog Crate36-inchby weightMidWest Homes for Pets lists the outside of the box; the usable inside is smaller.
Petmate Sky Kennel36" or 40"by weightBetween sizes. Check the maker’s chart before you buy.
Diggs Revol Collapsible Dog CrateIntermediate or Largeby weightBetween sizes. The maker says: “between sizes, size up”
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 CrateMed/Largeby 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 male American Staffordshire Terrier
Collars (7)SizeHow it was worked out
Ruffwear Front Range CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
Blueberry Pet Classic Solid Color Adjustable Dog CollarLby weight only, less reliable
PetSafe Martingale CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
Max and Neo Martingale All Nylon Dog CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
Wild One Waterproof Dog CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
2 Hounds Design Side Release (Buckle) Collar / Buckle MartingaleNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
Carhartt Dog CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.

Rows marked “by weight only” had no published girth to work from, so the maker’s weight bands were used. That is the weaker route, and two dogs of the same weight can need different sizes.

Sized for a female American Staffordshire Terrier

Harness sizes

Harnesses sized for a female American Staffordshire Terrier
Harnesses (19)SizeHow it was worked out
Julius-K9 IDC Powerharness0 or 1by weight only, less reliableBetween sizes. Check the maker’s chart before you buy.
Ruffwear Front Range HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Ruffwear Flagline HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Ruffwear Web Master HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Kurgo Tru-Fit Smart Harness (quick release)Medium or Largeby weight only, less reliableBetween sizes. Check the maker’s chart before you buy.
PetSafe Easy Walk HarnessMedium or Medium / Largeby weight only, less reliableBetween sizes. The maker says: “If your dog is between two sizes, choose a size up.”
PetSafe Easy Walk 3 in 1 HarnessSmall or Mediumby weight only, less reliableBetween sizes. The maker says: “if your pet falls in between sizes, size down”
Rabbitgoo ControlPro No-Pull Harness (ControlPro series)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Blue-9 Balance HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
2 Hounds Design Freedom No-Pull Harness5/8" Medium or 1" Mediumby weight only, less reliableBetween sizes. The maker says: “choose the SMALLEST size that fits the chest measurement”
Wild One Classic Cushioned Dog Harness (with neck buckle)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Wild One Step-In Dog HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Voyager (Best Pet Supplies) Step-In Air Pet HarnessNo sizeby weight only, less reliableVoyager (Best Pet Supplies) lists no Step-In Air Pet Harness size for over 28 lb. Check with Voyager (Best Pet Supplies).
Gooby Comfort X Head-In HarnessNo sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Puppia RiteFit Harness (PAJA-AC617)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Puppia Soft Harness (PDCF-AC30)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Chai's Choice Outdoor Adventure Dog Harness (3M reflective)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.
Embark Adventure No-Pull HarnessMEDIUM or LARGEby weight only, less reliableBetween sizes. Check the maker’s chart before you buy.
Carhartt Training Dog Harness (Nylon Duck Training Harness, PH0341)No sizeno sizeNo published chest girth for this breed, and this maker does not print dog weights. Measure your dog.

Rows marked “by weight only” had no published girth to work from, so the maker’s weight bands were used. That is the weaker route, and two dogs of the same weight can need different sizes.

Crate sizes

Crates sized for a female American Staffordshire Terrier
Crates (6)SizeHow it was worked out
MidWest Homes for Pets iCrate Single Door Folding Dog Crate30-inch or 36-inchby weightBetween sizes. Check the maker’s chart before you buy.MidWest Homes for Pets lists the outside of the box; the usable inside is smaller.
MidWest Homes for Pets LifeStages Single Door Dog Crate30-inch or 36-inchby weightBetween sizes. Check the maker’s chart before you buy.MidWest Homes for Pets lists the outside of the box; the usable inside is smaller.
Petmate Sky Kennel32" or 36"by weightBetween sizes. Check the maker’s chart before you buy.
Diggs Revol Collapsible Dog CrateMedium or Intermediateby weightBetween sizes. The maker says: “between sizes, size up”
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 CrateMedium or Med/Largeby weightBetween sizes. Check the maker’s chart before you buy.Frisco (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 female American Staffordshire Terrier
Collars (7)SizeHow it was worked out
Ruffwear Front Range CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
Blueberry Pet Classic Solid Color Adjustable Dog CollarM or Lby weight only, less reliableBetween sizes. Check the maker’s chart before you buy.
PetSafe Martingale CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
Max and Neo Martingale All Nylon Dog CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
Wild One Waterproof Dog CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
2 Hounds Design Side Release (Buckle) Collar / Buckle MartingaleNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.
Carhartt Dog CollarNo sizeno sizeNo published neck girth for this breed, and this maker does not print dog weights. Measure your dog.

Rows marked “by weight only” had no published girth to work from, so the maker’s weight bands were used. That is the weaker route, and two dogs of the same weight can need different sizes.

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 American Staffordshire Terrier

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 American Staffordshire Terrier

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

No chest or neck girth is published for the American Staffordshire Terrier, so there is nothing to compare against here.

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 American Staffordshire Terrier 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 American Staffordshire Terrier?
On the charts published by their makers, a American Staffordshire Terrier comes out at Julius-K9 IDC Powerharness 0 to 2 (3 sizes), Kurgo Tru-Fit Smart Harness (quick release) Large, PetSafe Easy Walk Harness Medium / Large or Large (by weight only, which is the weaker route), with 6 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 American Staffordshire Terrier?
By the makers' own weight guidance, a American Staffordshire Terrier comes out at MidWest Homes for Pets iCrate Single Door Folding Dog Crate 36-inch or 42-inch, MidWest Homes for Pets LifeStages Single Door Dog Crate 36-inch, Petmate Sky Kennel 36" or 40". 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 American Staffordshire Terrier get?
An adult American Staffordshire Terrier is 18–19 in tall at the shoulder for males and 17–18 in for females, 55–70 lb for males and 40–55 lb for females. No published chest or neck girth was found for this breed. 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.