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Dog Size Chart
Units

Rottweiler size chart: crate, harness & collar

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

Adult Rottweiler

Height at the shoulder
Male 24–27 in61–68.6 cm
Female 22–25 in55.9–63.5 cm
Adult weight
Male 95–135 lb43.1–61.2 kg
Female 80–100 lb36.3–45.4 kg
Chest girth
32–40 in81.3–101.6 cm
Neck
20–26 in50.8–66 cm

AKC prints: “Height: 24-27 inches (male), 22-25 inches (female)”, “Weight: 95-135 pounds (male), 80-100 pounds (female)”.

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

Source: Hund & Shore, "Dog Collar & Harness Size Chart by Breed" (breed row: Rottweiler; typical range, 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.

Sized for a male Rottweiler

Harness sizes

Harnesses sized for a male Rottweiler
Harnesses (19)SizeHow it was worked out
Julius-K9 IDC Powerharness1 to 4 (4 sizes)by chest girthBetween 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 HarnessM or L/XLby chest girthBetween sizes. The maker says: “In between sizes? Choose the larger size.”
Ruffwear Flagline HarnessM or L/XLby chest girthBetween sizes. The maker says: “In between sizes? Choose the larger size.”
Ruffwear Web Master HarnessM or L/XLby chest girthBetween sizes. The maker says: “In between sizes? Choose the smaller size.”
Kurgo Tru-Fit Smart Harness (quick release)Large or X-Largeby chest girthBetween sizes. Check the maker’s chart before you buy.
PetSafe Easy Walk HarnessMedium to Extra Large (4 sizes)by chest girthBetween sizes. The maker says: “If your dog is between two sizes, choose a size up.”PetSafe’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
PetSafe Easy Walk 3 in 1 HarnessMedium or Largeby chest girthBetween sizes. The maker says: “if your pet falls in between sizes, size down”
Rabbitgoo ControlPro No-Pull Harness (ControlPro series)L or XLby chest girthBetween sizes. Check the maker’s chart before you buy.
Blue-9 Balance HarnessM to L (3 sizes)by chest girthBetween sizes. Check the maker’s chart before you buy.Blue-9’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
2 Hounds Design Freedom No-Pull Harness1" Large to 1" XXLarge (3 sizes)by chest girthBetween sizes. The maker says: “choose the SMALLEST size that fits the chest measurement”2 Hounds Design’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
Wild One Classic Cushioned Dog Harness (with neck buckle)Lby chest girth
Wild One Step-In Dog HarnessLby chest girth
Voyager (Best Pet Supplies) Step-In Air Pet HarnessNo sizeby chest girthThis breed's published chest girth falls outside every size this maker prints.
Gooby Comfort X Head-In HarnessNo sizeby chest girthThis breed's published chest girth falls outside every size this maker prints.
Puppia RiteFit Harness (PAJA-AC617)No sizeby chest girthThis breed's published chest girth falls outside every size this maker prints.
Puppia Soft Harness (PDCF-AC30)XXLby chest girth
Chai's Choice Outdoor Adventure Dog Harness (3M reflective)L or XLby chest girthBetween sizes. Check the maker’s chart before you buy.
Embark Adventure No-Pull HarnessMEDIUM to XL (3 sizes)by chest girthBetween sizes. Check the maker’s chart before you buy.Embark’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
Carhartt Training Dog Harness (Nylon Duck Training Harness, PH0341)LARGE or X-LARGEby chest girthBetween sizes. The maker says: “between sizes, size up”

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 Rottweiler
Crates (6)SizeHow it was worked out
MidWest Homes for Pets iCrate Single Door Folding Dog Crate48-inchby weightMidWest Homes for Pets lists the outside of the box; the usable inside is smaller.
MidWest Homes for Pets LifeStages Single Door Dog Crate48-inchby weightMidWest Homes for Pets lists the outside of the box; the usable inside is smaller.
Petmate Sky Kennel48"by weight
Diggs Revol Collapsible Dog CrateNo sizeby weightDiggs lists no Revol Collapsible Dog Crate size for over 90 lb. Check with Diggs.
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 CrateX-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 Rottweiler
Collars (7)SizeHow it was worked out
Ruffwear Front Range Collar14"-20" or 20"-26"by neck girthBetween sizes. Check the maker’s chart before you buy.
Blueberry Pet Classic Solid Color Adjustable Dog CollarM or Lby neck girthBetween sizes. Check the maker’s chart before you buy.
PetSafe Martingale CollarLargeby neck girth
Max and Neo Martingale All Nylon Dog CollarMedium or Largeby neck girthBetween sizes. Check the maker’s chart before you buy.
Wild One Waterproof Dog CollarExtra Largeby neck girth
2 Hounds Design Side Release (Buckle) Collar / Buckle MartingaleLG to XXL (3 sizes)by neck girthBetween sizes. Check the maker’s chart before you buy.2 Hounds Design’s sizes overlap, so one dog can fall in several. Measure your dog’s neck and check the maker’s chart.
Carhartt Dog CollarLARGEby 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.

Sized for a female Rottweiler

Harness sizes

Harnesses sized for a female Rottweiler
Harnesses (19)SizeHow it was worked out
Julius-K9 IDC Powerharness1 to 4 (4 sizes)by chest girthBetween 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 HarnessM or L/XLby chest girthBetween sizes. The maker says: “In between sizes? Choose the larger size.”
Ruffwear Flagline HarnessM or L/XLby chest girthBetween sizes. The maker says: “In between sizes? Choose the larger size.”
Ruffwear Web Master HarnessM or L/XLby chest girthBetween sizes. The maker says: “In between sizes? Choose the smaller size.”
Kurgo Tru-Fit Smart Harness (quick release)Large or X-Largeby chest girthBetween sizes. Check the maker’s chart before you buy.
PetSafe Easy Walk HarnessMedium to Extra Large (4 sizes)by chest girthBetween sizes. The maker says: “If your dog is between two sizes, choose a size up.”PetSafe’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
PetSafe Easy Walk 3 in 1 HarnessMedium or Largeby chest girthBetween sizes. The maker says: “if your pet falls in between sizes, size down”
Rabbitgoo ControlPro No-Pull Harness (ControlPro series)L or XLby chest girthBetween sizes. Check the maker’s chart before you buy.
Blue-9 Balance HarnessM to L (3 sizes)by chest girthBetween sizes. Check the maker’s chart before you buy.Blue-9’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
2 Hounds Design Freedom No-Pull Harness1" Large to 1" XXLarge (3 sizes)by chest girthBetween sizes. The maker says: “choose the SMALLEST size that fits the chest measurement”2 Hounds Design’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
Wild One Classic Cushioned Dog Harness (with neck buckle)Lby chest girth
Wild One Step-In Dog HarnessLby chest girth
Voyager (Best Pet Supplies) Step-In Air Pet HarnessNo sizeby chest girthThis breed's published chest girth falls outside every size this maker prints.
Gooby Comfort X Head-In HarnessNo sizeby chest girthThis breed's published chest girth falls outside every size this maker prints.
Puppia RiteFit Harness (PAJA-AC617)No sizeby chest girthThis breed's published chest girth falls outside every size this maker prints.
Puppia Soft Harness (PDCF-AC30)XXLby chest girth
Chai's Choice Outdoor Adventure Dog Harness (3M reflective)L or XLby chest girthBetween sizes. Check the maker’s chart before you buy.
Embark Adventure No-Pull HarnessMEDIUM to XL (3 sizes)by chest girthBetween sizes. Check the maker’s chart before you buy.Embark’s sizes overlap, so one dog can fall in several. Measure your dog’s chest and check the maker’s chart.
Carhartt Training Dog Harness (Nylon Duck Training Harness, PH0341)LARGE or X-LARGEby chest girthBetween sizes. The maker says: “between sizes, size up”

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 female Rottweiler
Crates (6)SizeHow it was worked out
MidWest Homes for Pets iCrate Single Door Folding Dog Crate42-inch or 48-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 Crate42-inch or 48-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 Kennel40" or 48"by weightBetween sizes. Check the maker’s chart before you buy.
Diggs Revol Collapsible Dog CrateLargeby 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 CrateLarge or X-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 Rottweiler
Collars (7)SizeHow it was worked out
Ruffwear Front Range Collar14"-20" or 20"-26"by neck girthBetween sizes. Check the maker’s chart before you buy.
Blueberry Pet Classic Solid Color Adjustable Dog CollarM or Lby neck girthBetween sizes. Check the maker’s chart before you buy.
PetSafe Martingale CollarLargeby neck girth
Max and Neo Martingale All Nylon Dog CollarMedium or Largeby neck girthBetween sizes. Check the maker’s chart before you buy.
Wild One Waterproof Dog CollarExtra Largeby neck girth
2 Hounds Design Side Release (Buckle) Collar / Buckle MartingaleLG to XXL (3 sizes)by neck girthBetween sizes. Check the maker’s chart before you buy.2 Hounds Design’s sizes overlap, so one dog can fall in several. Measure your dog’s neck and check the maker’s chart.
Carhartt Dog CollarLARGEby 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 Rottweiler

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 Rottweiler

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 Rottweiler: 32 to 40 in chest, 20 to 26 in neck (Hund & Shore, "Dog Collar & Harness Size Chart by Breed").

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 Rottweiler 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 Rottweiler?
On the charts published by their makers, a Rottweiler comes out at Julius-K9 IDC Powerharness 1 to 4 (4 sizes), Ruffwear Front Range Harness M or L/XL, Ruffwear Flagline Harness M or L/XL (by published chest girth), with 16 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 Rottweiler?
By the makers' own weight guidance, a Rottweiler comes out at MidWest Homes for Pets iCrate Single Door Folding Dog Crate 48-inch, MidWest Homes for Pets LifeStages Single Door Dog Crate 48-inch, Petmate Sky Kennel 48". 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 Rottweiler get?
An adult Rottweiler is 24–27 in tall at the shoulder for males and 22–25 in for females, 95–135 lb for males and 80–100 lb for females. Published sizing charts give a chest girth of 32–40 in and a neck of 20–26 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.