Random Riddle: My Own Weights

I am usually in a wooden case
I can have a square or round base
I have my own set of weights
In my name, is what a child calls a parent
When you hear me, I am apparent
I am Grand.
By my name, I sound old
I am in stores where I am sold
Short I am not
I typically sit in one spot
 
Random Riddle: My Own Weights