Great Dane Mix With Rottweiler: The Great Weiler Breed Profile

A Great Dane mix with Rottweiler — sometimes called the Great Weiler or Rott Dane — is one of the most physically imposing designer crosses you'll encounter. Combining two giant and large-breed powerhouses, this mix produces dogs that can exceed 140 pounds and stand well over 30 inches at the shoulder. But beyond the sheer scale, prospective owners need to understand the real variability in temperament, health, and daily care that comes with blending these two very different working breeds.

This profile breaks down what you can realistically expect from a Great Dane Rottweiler mix, where the unpredictability lies, and whether this cross is a realistic fit for your household.

Parent Breeds: Great Dane and Rottweiler Compared

Before predicting what a Great Dane mix with Rottweiler might look or act like, it's worth understanding the two foundation breeds. Both are recognized by the American Kennel Club (AKC), but they come from entirely different working lineages and carry different trait profiles.

Parent Breed Comparison: Great Dane vs. Rottweiler

Trait	Great Dane	Rottweiler
AKC Group	Working	Working
Weight Range	110–175 lb (50–79 kg)	80–135 lb (36–61 kg)
Height at Shoulder	28–32 in (71–81 cm)	22–27 in (56–69 cm)
Lifespan	7–10 years	9–10 years
Coat	Short, smooth, single coat	Short, dense double coat
Original Purpose	Boar hunting, estate guarding	Driving cattle, draft work, guarding
Temperament Baseline	Gentle, sociable, people-oriented	Confident, aloof with strangers, loyal
Energy Level	Moderate (burst energy, long naps)	Moderate-high (sustained stamina)
Trainability	Willing but can be stubborn	Highly trainable, driven
Shedding	Moderate, seasonal	Moderate-heavy, seasonal blowout

The Great Dane contributes height, a gentler social disposition, and a lower energy baseline. The Rottweiler contributes muscular density, protective instinct, and higher drive. The mix can lean heavily toward either parent — and that's the central challenge of owning this cross.

Understanding Generations: F1, F2, and Multigen Great Weilers

How Big Will a Great Dane Mix With Rottweiler Get?

This is one of the most common questions about this cross, and the honest answer is: the range is wide. Because both parent breeds are large to giant, you are virtually guaranteed a big dog — but "big" here spans a significant window.

Estimated Adult Size Range: Great Dane Rottweiler Mix

Measurement	Low End	High End	Most Common Range
Weight (Males)	100 lb (45 kg)	165 lb (75 kg)	120–145 lb (54–66 kg)
Weight (Females)	85 lb (39 kg)	140 lb (64 kg)	100–125 lb (45–57 kg)
Height at Shoulder	25 in (64 cm)	32 in (81 cm)	27–30 in (69–76 cm)
Body Length (nose to tail base)	36 in (91 cm)	46 in (117 cm)	39–43 in (99–109 cm)

Growth in giant-breed crosses is prolonged. Expect your Great Weiler to continue gaining weight and filling out until 18–24 months of age, with height plateauing around 12–14 months. Rapid growth in the first 6 months makes proper nutrition critical — feed a large-breed puppy formula (AAFCO-approved, with controlled calcium-to-phosphorus ratios of approximately 1.1:1 to 1.4:1) to reduce orthopedic disease risk. The Merck Veterinary Manual notes that overfeeding giant-breed puppies significantly increases the incidence of developmental orthopedic disease.

Temperament: What to Expect (and What Might Surprise You)

The temperament of a Great Dane mix with Rottweiler is where individual variation matters most. The two parent breeds have meaningfully different social styles, and a puppy can inherit any combination.

Early socialization is non-negotiable for this cross. The critical socialization window closes around 14–16 weeks of age, and a 30-pound puppy with Rottweiler-leaning protective instincts needs structured exposure to strangers, other dogs, novel environments, and handling exercises before that window closes. Use positive reinforcement methods exclusively — food rewards, play rewards, and counter-conditioning for fear responses. Aversive tools like shock collars or prong collars are counterproductive with this cross, as both parent breeds can develop fear-based aggression when punished.

Coat, Shedding, and Grooming Requirements

The Great Dane Rottweiler mix is not hypoallergenic and not low-shedding. Both parent breeds have short coats, but the Rottweiler carries a double coat (dense undercoat beneath a coarser outer layer), while the Great Dane has a single short coat. Which coat type your dog inherits determines the shedding level:

• Dane-type coat (single, smooth): Moderate year-round shedding. Manageable with weekly brushing using a rubber curry brush or bristle brush. Seasonal shedding increases in spring and fall.
• Rottweiler-type coat (double, dense): Moderate-to-heavy year-round shedding with significant seasonal "blowout" periods lasting 2–3 weeks. Requires brushing 2–3 times per week with an undercoat rake during shedding season.

Coat colors in this mix typically fall within these ranges: black and tan (Rottweiler-marked), solid black, fawn, brindle, harlequin (if the Dane parent carried the harlequin gene), or merle. Note that merle-to-merle breeding can produce double-merle puppies with serious auditory and ocular defects — responsible breeders will never intentionally breed two merle carriers.

Grooming checklist for a Great Weiler:

• Nail trimming every 3–4 weeks (or as needed — large dogs wearing down nails on concrete may need less frequent trims)
• Ear cleaning weekly with a veterinary-approved ear cleanser, especially if ears are floppy (Dane-inherited)
• Bathing every 6–8 weeks, or as needed; use a gentle oatmeal-based dog shampoo to avoid drying out the skin
• Dental brushing 3–4 times per week minimum — giant breeds are prone to periodontal disease, and a 140-pound dog with dental pain is difficult to manage
• Wrinkle care (if the dog inherits any facial folds) — wipe with a damp cloth daily to prevent yeast and bacterial infections

Health Considerations: Inherited Risks From Both Parent Breeds

Let's address the hybrid vigor myth directly: crossbreeding does not eliminate health risks. The concept of hybrid vigor (heterosis) refers to a statistical reduction in the probability of inheriting recessive genetic disorders that are common within a closed gene pool. It does not grant immunity from conditions that both parent breeds share, and it does not prevent structural or developmental diseases related to giant size.

The Great Dane and Rottweiler share several overlapping health vulnerabilities. A Great Dane mix with Rottweiler should be screened for the following:

Key Health Conditions: Great Dane Rottweiler Mix

Condition	Prevalence in Parent Breeds	Screening Recommendation	Estimated Treatment Cost Range
Gastric Dilatation-Volvulus (GDV / Bloat)	Great Danes: ~40% lifetime risk (one of the highest of any breed). Rottweilers: elevated risk as a deep-chested breed.	Discuss prophylactic gastropexy with your veterinarian at time of spay/neuter	$1,500–$7,000 (emergency surgery); $300–$600 (prophylactic gastropexy)
Hip Dysplasia	Great Dane: ~12% (OFA data). Rottweiler: ~20% (OFA data).	OFA or PennHIP evaluation at 24 months	$1,500–$7,000 per hip (total hip replacement)
Dilated Cardiomyopathy (DCM)	Great Dane: one of the most predisposed breeds. Rottweiler: recognized predisposition.	Annual cardiac exam; echocardiogram by age 3–4	$300–$800 (diagnostics); $100–$300/month (ongoing medication)
Osteosarcoma (Bone Cancer)	Rottweiler: ~12.5% lifetime risk (per Merck Veterinary Manual). Great Dane: elevated risk in giant breeds.	Lameness workup for any persistent limp lasting >7 days	$5,000–$15,000+ (amputation + chemotherapy)
Elbow Dysplasia	Rottweiler: ~13% (OFA). Great Dane: lower but present.	OFA elbow evaluation at 24 months	$2,000–$5,000 (surgical intervention)
Wobbler Syndrome (Cervical Spondylomyelopathy)	Great Dane: well-documented predisposition, especially in dogs <3 years.	Neurological exam if gait abnormalities appear	$3,000–$8,000 (surgical decompression/stabilization)

Consult your veterinarian about establishing a breed-appropriate health screening schedule. For a dog of this size and risk profile, annual wellness exams should include cardiac auscultation, orthopedic evaluation, and weight monitoring. Giant-breed dogs age faster than smaller dogs — a 7-year-old Great Weiler is functionally a senior.

Who Should (and Shouldn't) Own a Great Dane Rottweiler Mix

This cross is not a beginner dog. The combination of giant size, potential protective instincts, and strength demands an owner who can manage a powerful animal confidently and responsibly.

This mix suits owners who:

• Have prior experience with large or giant breeds (Rottweilers, Danes, Mastiffs, German Shepherds)
• Live in a home with adequate space — minimum fenced yard of 500+ square feet of outdoor access, plus interior space for a dog that can be 5+ feet long
• Can commit to 45–90 minutes of daily exercise, adjusted to the individual dog's energy level
• Are prepared for the financial reality: $2,500–$4,500 annually in food, preventive care, and supplies for a dog this size
• Have older children (age 10+) or no small children — a 130-pound dog can inadvertently knock over a toddler
• Can invest in professional positive-reinforcement training during the first 12–18 months

This mix is a poor fit for:

• First-time dog owners without a support network of experienced handlers or trainers
• Apartment dwellers in buildings without ground-floor access or nearby exercise areas
• Households with small children under age 5 (risk of accidental injury from the dog's size)
• Owners unable to lift or physically manage a 100+ lb dog (consider: can you load this dog into a vehicle if they're injured and unable to walk?)
• Anyone who believes a dog should "raise itself" — this cross needs structured socialization and ongoing training

Cost, Availability, and Finding a Great Dane Rottweiler Mix

The Great Weiler is an uncommon designer cross. You will not find established breed clubs or AKC recognition for this mix. Availability is limited and mostly driven by small-scale breeders or accidental litters.

Cost Breakdown: Great Dane Mix With Rottweiler

Source	Price Range	Notes
Small-scale breeder (F1 cross)	$800–$2,000	Verify health testing of both parent dogs (OFA hips, elbows, cardiac); request pedigree documentation
Backyard breeder / online listing	$300–$800	High risk — no health testing, unknown temperament lineage, potential puppy mill sourcing
Breed-specific rescue (Great Dane or Rottweiler rescue)	$200–$500 (adoption fee)	Mixes occasionally appear; fosters can provide temperament evaluation; usually spayed/neutered and vetted
General shelter / animal control	$50–$250	Least predictable option; request any available behavioral assessment; budget for veterinary intake exam

First-year cost estimate for a Great Dane Rottweiler mix (beyond purchase price):

• High-quality large-breed food: $800–$1,400/year (expect to feed 5–8 cups of premium kibble daily)
• Veterinary care (vaccines, preventives, wellness): $600–$1,200
• Heartworm/tick/flea prevention: $200–$400/year
• Crate (XXL, 48–54 inch): $120–$250
• Leash, harness, collar (heavy-duty rated for 150+ lb): $80–$180
• Training classes (group + private sessions): $400–$1,200
• Pet insurance (recommended for this cross): $600–$1,200/year (breed/size-dependent)

Total first-year ownership cost typically falls between $3,800 and $7,000, not including the initial purchase or adoption fee.

When evaluating a breeder, insist on seeing OFA (Orthopedic Foundation for Animals) health certificates for both parent dogs — hips, elbows, and cardiac evaluation at minimum. A responsible breeder will also have a take-back clause in their contract, meaning they will accept the dog back at any point in its life if you cannot keep it. Check the ASPCA's resources on responsible breeding for additional red flags to watch for.

Frequently Asked Questions