# ID size

**URL:** <https://www.ruby-forum.com/t/id-size/152694>\
**Category:** Rails\
**Created:** [November 6, 2008, 3:05pm UTC](https://www.ruby-forum.com/t/id-size/152694 "2008-11-06T15:05:23Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![petan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c57346/32.png) [@petan](https://www.ruby-forum.com/u/petan)\
**Post date:** [November 6, 2008, 3:05pm UTC](https://www.ruby-forum.com/t/id-size/152694/1 "2008-11-06T15:05:23Z")

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Hi,

does anyone know how big is the default Id, when we are creating a new  
table?  
I mean its size. int(11) for example. Thx guys.

Petr