Does anyone have any preferences on makes/types/prices of whelping boxes.  It would be for a medium sized dog (GSP).  Also has anyone made their own whelping box and if so what measurements/design  is best?  Thank you in advance.

Lynne do a search on the site there have been a lot of posts on making boxes.  Just click the search button up top :-)

Great, thanks Blue :)

Breed specific books that cover breeding often have simple plans for making appropriately sized welping boxes.