How much should and English mastiff weigh at a year old?

I know it matters on there parents or w.e but i have a mastiff he’s 12 months old around 150 lbs how much more is he going to grow?

Boys can weigh 150-200 pounds. He’ll probably continue filling out for a bit yet. Up to 18-24 months.

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3 Responses to How much should and English mastiff weigh at a year old?

  1. bloomorningglory says:

    Boys can weigh 150-200 pounds. He’ll probably continue filling out for a bit yet. Up to 18-24 months.
    References :

  2. moof says:

    There’s no way to know. All dogs grow according to individual growth rates, and there can be huge variety among the growth patterns of Mastiffs. Some grow rapidly and their weight hits a plateau at a young age. Some grow slowly until they’re four years old. Some have random growth spurts. There’s no way to know if your boy will soon hit a plateau and end up being only 175 pounds, if he’ll gradually gain weight until he’s 220 pounds at age four, or if he’ll have unpredictable growth spurts and be, say, 200 pounds. Knowing the growth patterns of his relatives can definitely help to guess your own dog’s growth rate, although it isn’t a guarantee.

    If it makes any difference, here are two growth charts for Mastiffs:
    http://www.mastiffonlinecommunity.net/viewtopic.php?t=99
    http://www.mastiffonlinecommunity.net/viewtopic.php?t=8291
    The first must be taken with a grain of salt, because many happy, healthy Mastiffs do not follow it. According to it, a twelve-month-old male would be 175 pounds, and would be 220 pounds by age five. With that reasoning, your 150-pound boy might be 195 pounds when he’s completely done growing. The second list isn’t so much a growth chart as a compilation of the real weights of Mastiffs, which I feel is much more helpful..

    Anyway, although as you know, this is completely unguaranteed, but I think he’ll end up around 200 with a ten pound leeway both ways.
    References :

  3. Joeysturdivant says:

    I just took my male to the get today that turned a year last week and he weighed 160 and has a lot of skin to fill. His dad was over 200 and mom was 187 and my vet says he’s not sure why I would want him to but he feels pretty sure that by the time he is around 30 months he will probably be around 220. A lot depends on a well balanced diet, exercise, and plenty of sleep and my Frank sleeps all the time.