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Giant Schnauzer vs Old English Sheepdog

A side-by-side comparison to help you find the right breed for your lifestyle.

Working
Giant Schnauzer breed photo

Giant Schnauzer

Also known as: Riesenschnauzer, Munich Schnauzer

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The Giant Schnauzer is a powerful and intelligent large dog breed known for its imposing presence, distinctive beard, and loyal temperament. Originating from Germany, this is the largest of the three Schnauzer breeds and was originally bred for driving cattle and guarding. They are celebrated for their courage, trainability, and protective nature.

Size

Extra Large

Energy

High

Lifespan

10-12 yrs

Height

60-70 cm

Weight

35-47 kg

VS
Old English Sheepdog breed photo

Old English Sheepdog

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The Old English Sheepdog is a large, shaggy herding breed known for its distinctive shaggy double coat and gentle, playful disposition. Originally bred in England for driving cattle and sheep, this affectionate and intelligent breed is also a beloved family companion.

Size

Extra Large

Energy

High

Lifespan

10-12 years yrs

Height

56+ cm cm

Quick Comparison

TraitGiant SchnauzerOld English Sheepdog
Energy
Trainability
Grooming Needs
Family Friendly
Independence

Key Characteristics

Good with Kids
Good with Dogs
Good with Cats
Hypoallergenic
Apartment Friendly
First-Time Owner OK
DetailGiant SchnauzerOld English Sheepdog
SizeExtra LargeExtra Large
Energy LevelHighHigh
GroomingHighHigh
Trainabilitychallengingchallenging
Barking LevelHighHigh
Shedding LevelLowLow
Chew strengthN/AModerate
HousingYardYard

Owner Fit & Decision Guide

Owner Match

TraitGiant SchnauzerOld English Sheepdog
Experience LevelAdvancedExperienced
First-Time Owner
Ideal OwnerExperienced dog owner who understands canine body language and drive theory. Active lifestyle with time for 2+ hours of daily engagement. Confident personality that can be firm and consistent. Has secure property with 6ft fence. Works from home or can provide midday activity. No other dogs of same sex in household.Active individual or family who can provide adequate exercise and training for a Old English Sheepdog.

Giant Schnauzer Dealbreakers

  • First-time dog owner
  • Sedentary lifestyle
  • Passive personality - cannot firmly enforce rules
  • Live in rental housing (breed bans and size limits)
  • Have other dogs of the same sex

Old English Sheepdog Dealbreakers

  • Cannot meet 90-120 min daily exercise
  • Cannot commit to grooming needs

Surrender Risk

FactorGiant SchnauzerOld English Sheepdog
Risk LevelHighMedium
Primary ReasonsBit me/my child/my other dog, Owner failed to set boundaries, 90lb dog now challenges for control, Same-sex aggression emerged at maturity, Cannot afford insurance or housingUnderestimated exercise needs, Behavioral challenges, Cost of care

Temperament & Personality

Behavior Comparison

TraitGiant SchnauzerOld English Sheepdog
Prey Drive
Watchdog Ability
Stranger Friendly
Drool Level
Wanderlust

Vocalization

TraitGiant SchnauzerOld English Sheepdog
Barking LevelHighHigh
Howling Tendency
Whining TendencyLowLow
Separation Vocalization
Giant Schnauzer bark triggers
Strangers approachingPerceived threatsOther dogsNoises outside
Old English Sheepdog bark triggers
StrangersDoorbellsOther dogs

Safety & Reliability

TraitGiant SchnauzerOld English Sheepdog
Escape Artist
Dog Park Suitable
Off-Leash Reliable
Small Animal Safe
Leash Reactivity
Resource Guarding RiskHighLow

Giant Schnauzer Social Traits

Velcro Dog
One Person Dog
Handling ToleranceMedium
Stranger Wariness

Very High

With Other Dogs

Very selective - same-sex aggression common, best as only dog or with submissive opposite-sex dog

Old English Sheepdog Social Traits

Velcro Dog
One Person Dog
Handling ToleranceMedium
Stranger Wariness

Moderate

With Other Dogs

Generally friendly

Training

Giant Schnauzer

MethodBalanced training - firm and fair
Repetitions to Learn15-25 for new commands
Challenges
Constantly testing boundariesFinding and exploiting loopholes in commandsRequires consistency across ALL family membersDoes not respond well to harsh punishment OR purely positive methods
Tips
  • They need 'No' to mean 'No' - not permissive training
  • Be a confident leader - if you are passive, they will assume leadership
  • They are intelligent problem solvers who will exploit inconsistency
  • Socialization is a race against the clock before suspicion sets in

Old English Sheepdog

MethodPositive reinforcement
Challenges
Requires consistent, patient training
Tips
  • Keep training sessions short and varied

Giant Schnauzer Considerations

dealbreakerSame-Sex Aggression

Male Giant Schnauzers are notoriously intolerant of other males, and females can be equally combative. This often emerges at sexual maturity (18-24 months), turning a peaceful puppy household into a war zone. Many owners end up 'crate and rotate' (permanent separation).

dealbreakerDominance & Testing

Unlike eager-to-please breeds, Giant Schnauzers constantly ask 'Why should I?' They test boundaries relentlessly. Passive or inconsistent owners will find themselves with a dog that assumes leadership, leading to resource guarding and territorial aggression.

dealbreakerHigh Prey Drive

Their heritage involves vermin control and cattle driving. The 'kill bite' part of the predatory sequence is often intact. Cats, rabbits, and small dogs are at significant risk.

challengeInsurance Blacklists

Giant Schnauzers appear on many insurance 'dangerous dog' lists. Premiums may be 2-3x higher than average, or coverage denied entirely. Check insurance BEFORE getting this dog.

Old English Sheepdog Considerations

dealbreakerSevere Separation Anxiety

This is a "Velcro" breed in the truest sense. They were bred to work closely with shepherds and drovers, never straying far. In a modern home, this translates to a dog that may panic when left alone. Destructive chewing, howling, and house soiling are common symptoms of distress if isolation training is not started immediately in puppyhood.

challengeThe "Pot-Casse" Bark

The OES has a unique, ringing bark often described as "two pots clanging together." It is loud, deep, and can become a nuisance. They are alert watchdogs and will vocalize at delivery trucks, neighbors, and squirrels. This makes them poor candidates for apartments with noise restrictions.

challengeHerding Nipping

As a drover's dog, the OES controls movement. In a family setting, this often manifests as nipping at the heels of running children or "body checking" people to move them. While not aggressive, this behavior can be frightening for toddlers and annoying for guests.

challengeSame-Sex Aggression

While generally social, some OES lines—particularly males—can develop aggression toward other dogs of the same sex around social maturity (18-24 months). This requires vigilant management in multi-dog households.

Multi-Species Compatibility

SpeciesGiant SchnauzerOld English Sheepdog
With CatsHigh risk - only possible with strict supervision and early socialization, never guaranteedGenerally safe with proper introduction
Small MammalsDangerous - strong prey driveSupervision required
Birds / ReptilesUnsafe - predatory drive intactCaution advised

Advanced Behavior

TraitGiant SchnauzerOld English Sheepdog
Predatory Sequence RiskFullMedium
BiddabilityMediumLow
Noise SensitivityLowLow
Territorial Barking
Same-Sex Aggression Onset18 months18 months

Giant Schnauzer: The predatory sequence (Eye->Stalk->Chase->Grab->Kill) is often intact from their vermin control heritage. They are true guard dogs who will physically confront threats - not just alert bark. They require an owner who can call them off immediately. Independent worker but cooperative with established handler.

First Year & Life Stages

First Year Challenges

ChallengeGiant SchnauzerOld English Sheepdog
Puppy Difficulty
Destructive Phase6-246-18
House TrainingModerateModerate
Crate TrainingMediumMedium
Adolescent Regression

Giant Schnauzer: Unlike friendly Labs, Giant Schnauzer puppies combine sharp puppy teeth with a desire to dominate. They challenge handling early. Socialization is a race against the clock before their suspicion of strangers sets in. They are 'beavers' that will dismantle furniture if bored.

Old English Sheepdog: Old English Sheepdog puppies require consistent training and patience.

Life Stages Timeline

StageGiant SchnauzerOld English Sheepdog
Puppy Phase18 months12 months
Adolescence18-366-18
Adult Years3-82-8
Senior Onset~9 years~8 years
Peak Energy Age2-5 years1-3 years

Size & Physical Characteristics

Physical Stats

MeasurementGiant SchnauzerOld English Sheepdog
Height60-70 cm56+ cm cm
WeightNot enough data yetNot enough data yet
Size CategoryExtra LargeExtra Large
Lifespan

10–12 years

10–12 years

Litter Size5-94-8

Giant Schnauzer Coat

Type double
Length Medium
Texture wiry
Colors
Solid BlackSalt & Pepper

Old English Sheepdog Coat

Type double
Length Medium
Texture straight
Colors
Various

Lineage & Origin

DetailGiant SchnauzerOld English Sheepdog
Original PurposeCattle driving and guarding butcher shops/breweriesmassive, profuse coats that are nearly impossible for a pet owner to maintain without cutting
OriginBavarian Alps, Germanypredators

Breeding Details

DetailGiant SchnauzerOld English Sheepdog
C-Section RateLowVaries
Whelping DifficultyEasyMedium
Puppy Mortality RateLowLow

Physical Risks

RiskGiant SchnauzerOld English Sheepdog
Bloat / GDV RiskHighLow
Slippery Floor RiskMediumLow
Min Fence Height1.8m1.5m
Dig / Escape RiskLowLow

Health & Common Conditions

Giant Schnauzer Health Issues

Squamous Cell Carcinoma (Toe Cancer)Highly predisposed
Hip Dysplasia19.8%
Epilepsy3.7-4%
Hypothyroidism~3%
Bloat (GDV)High risk

Old English Sheepdog Health Issues

Hip Dysplasia18.5% prevalence
MDR1 Drug Sensitivity5-16% prevalence
Primary Ciliary DyskinesiaPCD
Hereditary Cataracts
Hypothyroidism

Giant Schnauzer Suggested Tests

  • Hip Dysplasia (OFA)
  • Thyroid
  • Eyes (CERF)
  • DCM (Heart)
  • DLA diversity

Old English Sheepdog Suggested Tests

  • OFA/PennHIP certificates (Hip Dysplasia)
  • DNA test for MDR1
  • DNA test for PCD
  • Annual CAER ophthalmologist exams (Hereditary Cataracts)
  • Thyroid panel (Hypothyroidism)

Health Risk Overview

Risk FactorGiant SchnauzerOld English Sheepdog
Cancer RiskHighMedium
Cardiac RiskMediumLow
Neurological RiskMediumLow
CCL/ACL Tear RiskMediumLow
Vet Burden TierHighMedium

Sensitivities & Allergies

SensitivityGiant SchnauzerOld English Sheepdog
Skin Allergies
Environmental Allergies
Stomach SensitivityLowLow
Food AllergiesGrain sensitivities

Health Maintenance

Care ItemGiant SchnauzerOld English Sheepdog
Nail Growth RateFastNormal
Eye Care NeedsLowLow
Anal Gland IssuesRareOccasional

Senior Care & Aging

Giant Schnauzer Senior Care

Common Senior Issues

  • Cancer (especially toe cancer)
  • Hip dysplasia progression
  • Hypothyroidism
  • Cognitive decline
Mobility Aid LikelihoodHigh
QoL Decline Age~9 years
End of Life ComplexityHigh

Rapid decline can occur in senior years. Cancer is the primary concern and often the limiting factor on lifespan. Any broken nail or toe swelling must be treated as potential emergency.

Old English Sheepdog Senior Care

Common Senior Issues

  • Arthritis
  • Vision decline
  • Cognitive changes
Mobility Aid LikelihoodMedium
QoL Decline Age~10 years
End of Life ComplexityMedium

Senior care varies by individual health.

Grooming & Care

Giant Schnauzer

high maintenance
Coat Typedouble
Coat Lengthmedium
Coat Texturewiry
Shedding LevelLow
Seasonal SheddingLow
Ear Cleaningweekly
Dental RiskMedium
Obesity Prone
Winter Gear Needed
Summer Restrictions
Paw Protection
Odor LevelLow
Tactile FeelWiry/Coarse - not soft to touch unless furnishings kept long
Colors
Solid BlackSalt & Pepper

Old English Sheepdog

high maintenance
Coat Typedouble
Coat Lengthmedium
Coat Texturestraight
Shedding LevelLow
Seasonal SheddingLow
Ear Cleaningweekly
Dental RiskMedium
Obesity Prone
Winter Gear Needed
Summer Restrictions
Paw Protection
Odor LevelModerate
Tactile FeelVaries by coat type
Colors
Various

Lifestyle Compatibility

Giant Schnauzer Daily Life

Exercise Needs90-120 min/day
Alone TimeUp to 4h
Mental StimulationVery High
ApartmentGenerally no - too large, active, and vocal for high-density living
Work from HomeSuitable - loves being with owner, but may bark at delivery drivers and demand attention
Weekend WarriorNOT suitable - cannot be crated all week, needs daily outlets or will become destructive and aggressive
HousingYard
Barking LevelHigh
First-Time Owner
Exercise Types
Running/joggingSwimmingSchutzhund/protection sportsNoseworkAdvanced obedience
NighttimeActive guardian - may patrol house and bark at noises outside
Food MotivationHigh

Old English Sheepdog Daily Life

Exercise Needs60-90 min/day
Alone TimeUp to 4h
Mental StimulationHigh
ApartmentChallenging - needs space
Work from HomeSuitable with adequate exercise
Weekend WarriorSuitable
HousingYard
Barking LevelHigh
First-Time Owner
Exercise Types
WalkingPlayTraining
NighttimeSleeps well when exercised
Food MotivationMedium

Housing & Legal Restrictions

RestrictionGiant SchnauzerOld English Sheepdog
BSL Restricted
Common Rental Ban
Insurance Blacklist
Weight CategoryOver 50lbsUnder 50lbs

Climate Tolerance

ClimateGiant SchnauzerOld English Sheepdog
Heat Tolerance
Cold Tolerance
Water AffinityMediumMedium

Travel Compatibility

ActivityGiant SchnauzerOld English Sheepdog
Car TravelGoodGood
Camping
Beach Friendly
Hiking Rating
Cabin Flight Eligible
Hotel Friendly Size

Niche Suitability

RoleGiant SchnauzerOld English Sheepdog
Service DogMediumLow
Therapy DogLowLow
Deep Pressure Therapy
Canicross / Bikejoring
Apartment Adaptable
Tactile / Sensory Friendly
Livestock Guardian
Medical AlertMediumLow

Costs & Expenses

Upfront Costs

CostGiant SchnauzerOld English Sheepdog
Purchase Price$2,500-3,500N/A
Initial Cost Range$2,500–$3,500$1,000–$2,500
Cost Tier

Ongoing Costs

CostGiant SchnauzerOld English Sheepdog
Monthly Range$200–$350$100–$180
Yearly Range$3,000–$4,500$1,200–$2,160
Food / Month$80-120$70-120
Insurance / Month$60-100N/A
Grooming / Session$100-200$100-150
Vet Routine / Year$500-1,000N/A
Monthly Cost Tier

Giant Schnauzer Lifetime Cost

$35,000-60,000

Old English Sheepdog Lifetime Cost

N/A

Quirks & Fun Facts

Daily Quirks

QuirkGiant SchnauzerOld English Sheepdog
Snoring
FlatulenceOccasionalOccasional
Slobber LevelLightLow
Smell When WetMildModerate
Zoomies FrequencyDailyOccasional
Counter Surfing
Digging TendencyLowLow

Giant Schnauzer Quirks

The Soggy Beard

The beard is a sponge - you will have water trails on your floor and wet spots on your lap after every drink.

Schnauzer Talk

They are vocal communicators - grumbling, woo-wooing, and groaning to express themselves.

Bathroom Shadow

You will never be alone again. If you close a door, they will wait on the other side. They need to be with their handler to feel secure.

Frequently Asked Questions

They are naturally protective and territorial. Without proper socialization and training, this can manifest as aggression. Same-sex aggression is common, emerging at 18-24 months. They are true guard dogs who will physically confront threats.
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