Iworry that my 6 month old puppy dog is going to be tall enough
the breed standard says aprox height 20" which a lot of dogs at the moment are aprox 21 in my breed
he is measuring 19" at the moment and he will be 7 months in a couple of weeks
Will he grow taller ?
i know he will alter a lot up until he,s 18.24 months in body and muscle etc but will he get taller?

In my breed if they are 18 inches at 6 months then they will make adult size of 19 1/2 inches as adult bitches and 20 1/2 for dogs.

My Lexi was exactly 18 inches at 6 months and is roughly 20 inches.  Myka was already 18 inches at 5 months and is 20 1/2 inches tall, dog height.

My current pup was also 18 inches and at 11 months is 19 1/2.

So as yours is also a mediuj size breed roughly same size I woudl expect yur boy will make size.

At 6 months they can look so small next to the adults and some of the mature youngsters or pups a few months older.