Is there any full width supporting CSS Grid System?

Twitter bootstrap fluid grid system works with percentages : http://twitter.github.com/bootstrap/scaffolding.html#fluidGridSystem

There is also a lot of pure css responsive grid system, for exemple : Skeleton

This article covers a lot of them : http://speckyboy.com/2011/11/17/15-responsive-css-frameworks-worth-considering/

It's possible to do that yourself, using percentages for css width, media queries and js fallbacks (as media queries aren't fully supported).

But those grid systems will save you times and headaches as they are for the most well tested.

To help your decision, you should consider :

• The browser support you need and those provided by the grid system.
• The size (they are lightweight for most, but some are not only grid systems, ie Twitter bootstrap).
• Naming conventions, your are gonna use weird css class (for exemple span4), chose the one you prefer, some of them are more semantic than others, it's up to you.
• And at least, the open sources factors : community, support, updates frequencies...

Also, this site is a most for responsive inspirations : http://mediaqueri.es/

I've been working on a fluid grid system called Fluidable. You can set the max-width to anything you like. In your case, you can simply set it to 100% and the grid will use up all the space. You can also configure any number of columns you like to use.

https://github.com/andri/Fluidable