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Bullmastiff Height Growth after 12 months old

Luvkoenandbriley

Active Member
Hello All. My Bullmastiff just turned one year old. He had parvo when he was 4 months old, so he's a little behind. I am wondering how much more growth in height he may get? Thanks for any insight you can provide :)
 

Oscar'sMom

Well-Known Member
It is variable. Most mastiffs grow until 3 years. Height was predetermined genetically, so it's mostly based on parents. The parvo shouldn't have stunted his growth :)
 

DennasMom

Well-Known Member
One chart I found has a mastiff around 72% of full size at the 12-month mark... but... your mileage may vary. :)
I think that's also mainly in the girth department... Denna (EM) only grew another 1.5-2 inches in height from 1yr to now (4yr).
 

JamieHalverson

Well-Known Member
My Lillie with be a year old on April 15th. Her breeder just told me she probably has 80-90% of her height and length but will continue to grow bone and muscle until about 2 years old or so, depending. Her mother and her mother's sister are both 116 pounds, show weight. Lillie is currently 90 pounds, so she's got a lot of filling out to do still. My guess is she will end up weighing about 110 pounds, so still 20 pounds to go. I'd consider show weight to be heavier than what I'd keep my dog at, so I'm thinking she will weigh a few pounds less than the females in her line.