SIZE CHART FORCASTER

 

Sheltie Size Forecaster
Published in the Shetland Sheepdog Magazine, July 1974
Taken from the ASSA Bulletin Board in August 1968 -
credits to Mary Van Wagenen for years of research and tabulation:

 

Age--------- Top Height------------ Exceptions

6 weeks----- 7.75"----------------- 8.25" - 8.5"
7 weeks----- 8.25"-----------------
2 months---- 9" ------------------- 9.25" - 9.5" - 10"
10 weeks----- 9.5"------------------ 10"
3 months---- 11.5"----------------- 11.75"
3.5 months--- 12.25"----------------
4 months---- 13"-------------------
4.5 months--- 13.5"----------------- 14.5" - 14.75"
5 months---- 14"------------------- 14.75"
5.5 months--- 14.5"----------------- 14.75"
6 months---- 15"------------------- 15.25"

 

Another tidbit to use is weights of puppies: Rule of thumb is at 6 weeks no more than 4# and at 8 weeks should weigh no more than 5.5#.

Other comments in the article follow:
(It is a good thing to get in the habit of measuring your line of sheltie
puppy development - as some lines quit growing at 5 months while others are just beginning to get a good start. Joyce Miles)

An "old-timers" rule of thumb has always been "13 inches at three months -
oversize at maturity." Joyce Miles
The following was taken from the Nov. 1967 issue of Collie - Sheltie Review.
By Mrs. Sue Dunsmoor:

"Add a little for the extremely heavy boned individuals. Subtract for light
boned individuals. Male puppies that are 11" or more at three months, or 13" or more at five months will be 15" or more at maturity. Just add four inches to the three-month measurement or two inches to the five-month measurement to arrive at the approximate mature height. Take bone structure into consideration.

Females that are 11" or more at three months or 13" or more at five months
will be 14" or more at maturity. Just add three inches to the three-month
measurement or one inch to the five-month measurement to arrive at the
approximate mature height, considering bone again.

No matter if the pups, male or female vary half an inch to one inch or so one way or another, the growth pattern seems to be the same - males and females grow about two inches between three and five months. But males grow about two inches after five months while females grow only about one inch usually."