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Boerboel Growth Chart
The Boerboel is a powerful South African mastiff-type breed developed as a farm guardian, combining great strength with a calm, confident temperament. Boerboel puppies grow enormously in their first year, and with an adult range of 150-200 lb, individuals vary widely. Most reach adult weight between 18 and 24 months, with some large males still adding substance into their third year.
View weight chart (lb & kg)Calculate Your Boerboel Puppy's Adult Weight
Enter your Boerboel puppy's age and current weight for an estimated adult weight range.
Boerboel weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Boerboel puppies approach adult weight around 24 months, although individuals may finish earlier or later.
These estimated ranges combine the breed's adult weights with a size-based growth curve. They are not measured breed-specific percentiles or health targets. Month labels are rounded approximations; use the week values for each row. How these weight ranges are calculated
Boerboel Growth Stages
Understanding the typical growth stages helps you know what to expect as your Boerboel puppy grows.
Neonatal
0–2 weeksPuppies are born with eyes and ears closed, relying entirely on their mother. Rapid weight gain occurs during this period.
Socialization
3–12 weeksEyes and ears open. Puppies begin to explore, play, and learn social behaviors. This is a critical period for development.
Juvenile
3–8 monthsRapid growth continues. Puppies become more independent, start teething, and develop coordination.
Adolescent
8–18 monthsGrowth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.
Young Adult
18–24 monthsGrowth is nearly complete. Your puppy is filling out and approaching adult proportions.
Adult
24+ monthsYour puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.
Boerboel FAQ
How much will my Boerboel puppy weigh as an adult?
Adult Boerboels typically weigh between 150 and 200 lb. The breed standard does not split this range by sex, so the same 150-200 lb band applies to both — males usually land toward the heavier end, but the overlap is wide.
At what age is a Boerboel fully grown?
Most Boerboels reach adult weight between 18 and 24 months. This is one of the heaviest breeds on the chart, so slow, steady growth matters — puppies should gain consistently without being pushed to maximum size early, since their joints carry a lot of weight.
How accurate is a Boerboel puppy weight chart?
It is a helpful guide, but expect wide variation. A 150 lb adult and a 200 lb adult are both within the standard, so two healthy Boerboels can differ by 50 lb. Track your own puppy's trend over several weeks rather than comparing to a single week's number.
How much should a Boerboel puppy weigh at 12 weeks?
Check the 12-week row in the weight-by-age table above for the estimated range. If your puppy falls well outside that band, re-check the scale, the lb/kg setting, and the age entry first — a single off reading is more common than a truly unusual puppy.
Do male and female Boerboels grow differently?
The official adult range is the same for both sexes at 150-200 lb. Males tend to be heavier and more massive on average, but females can also be very large, so the shared range reflects real overlap.