Hello all.  We are currently looking for a companion for our male rat and happens to be that a neighbor is giving away her 5 month old rat.  She currently weighs around 8 pounds and our 3 year old weighs about 12.5.  We really want to try to find a companion that is or will be around our rat's size.  So I was wondering around how big approx. will this female rat get knowing that she is 8 pounds at 5 months old.  Any info or ideas greatly appreciated. 

My Max weighed about 8lbs at six months old, he is now a year old and weighs about 11 - 13 lbs...not sure exactly, but that's my best guess!

My type B rattie, Mayfly, weighs a little over 11 pounds now and is full grown, don't remember what she weighed at 5 mos. but I think it was less than 8 pounds....they reach almost full height at 6 mos. but keep filling out after that.  So, if the pup is a purebred rattie, she may be a few pounds more than your guy.

Problem is if the owners don't even know what breed she is  - it's really hard to know how big she'll be!

Well, Amos was born March 1st.  That makes him almost 4 months old......I don't think he's a rat terrier anymore.  LOL  I think he's a HORSE that barks instead of whinneys.  He weighs 15lbs!  Amos came from a rescue and weighed 4 1/2 lbs at 7 weeks.  The lady told me she saw the parents and they weighed app 10-12lbs.  Wonder if Daddy was really Daddy?  KWIM?  I hope he slows down some.  I really wanted a lap dog when I got him.  No worries.  I love him and he's here to stay, even if he DOES get as big as a Great Dane.

Boomer who is suppose to be  a Mini RT is 14 lbs the last time I had him weight.... which is what I was told he would be... 

Could some one please explain what a type and B are?

Thanks

Savanna was 7# when I got her at approximately 6 months. (she's a rescue, so don't know exactly) Now at about 2 she is 10#. Hope this helps. She is only 11 inches at her shoulders.

Oh well I guess my boomer is a type A then!!! he is tall and lanky! and thin!!!

My hubby just asked if there is a preference, I told him that it is a personal preference is this a correct statement?

My girls must be Type B's  they are short and stocky with longer bodies Franny weigh's around 13 lbs and Patty is around 15!! Short and sweet just like their mother

Sonic is a big boy weighs 22 pounds dont know what he was when younger we adopted him this last April.  Our JRT, Sydney, looks like a rat but is a Jack, she weighs 14 pounds.  Syd and Sonic get along good and play well together but once in awhile they still have disagreements.  Noise but to biting.  Think Sydney starts it most of the time.

Our Bailey is about 11-12lbs at 5 months now and near 13" at his shoulders-still tall and very lanky-leggy looking!  Folks say he looks like a little deer running around! 

I think Tinkerbelle was almost 7 pounds at 5 months.  She's about 11 pounds now and she is 10 months old, but she is long and lean and oh so modelesque!

Vinnie is 15 inches at the withers (the tallest he can be and still be a mini) and weighs between 14.5 and 15 lbs. He is 3 years old.

Update on the "horse" aka Amos.

Vet visit yesterday for his last puppy shots.  At 4 1/2 months old he now weighs in at a whopping 20lbs!    He is at least 15 inches at the shoulders(best I could measure the wiggly little mess!)  He is tall and lanky so I guess he is of the Type A Decker variety.  He has also "matured" to the point that the vet says he can be neutered at anytime.  I'm scheduling him for July 27th.  He is so hyper, I'm hoping it will slow him down abit.  For a little while anyway.

My grandson will be here this weekend and I hope to get some really good shots of both my special boys.