# Breeding bigger dogs than Great Danes/Irish Wolfhounds?

**URL:** <https://boards.straightdope.com/t/breeding-bigger-dogs-than-great-danes-irish-wolfhounds/496590>\
**Category:** Factual Questions\
**Created:** [May 15, 2009, 11:50pm UTC](https://boards.straightdope.com/t/breeding-bigger-dogs-than-great-danes-irish-wolfhounds/496590 "2009-05-15T23:50:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![gytalf2000](https://avatars.discourse-cdn.com/v4/letter/g/ac91a4/32.png) [@gytalf2000](https://boards.straightdope.com/u/gytalf2000)\
**Post date:** [May 15, 2009, 11:50pm UTC](https://boards.straightdope.com/t/breeding-bigger-dogs-than-great-danes-irish-wolfhounds/496590/1 "2009-05-15T23:50:59Z")

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Could we breed dogs to be substantially bigger than great Danes or Irish Wolfhounds, or heavier/bulkier than the Mastiff? Or have we approached the limits with these breeds?