Fluid 960 Grid System Templates
The 960 Grid System is an effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels. There are two variants: 12 and 16 columns, which can be used separately or in tandem.
The premise of the system is ideally suited to rapid prototyping, but it would work equally well when integrated into a production environment. There are printable sketch sheets, design layouts, and a CSS file that have identical measurements.
The 960 Grid System is free to use, and may be repurposed to meet your specific needs. Several projects have already spun off, including versions that were built to be fluid and elastic. Additionally, it appears that it will be adapted for Drupal.
These templates are offered Free of charge in accordance with the applicable licenses for 960 Grid System and Mootools.
WooThemes have adopted it as their framework of choice for commercial WordPress themes.