I have been very pleased to provide a valuable resource to so many designers with my original Bootstrap Grid PSDs. But with Bootstrap 3 came a new default grid (and mobile-first mentality). Now, I am trilled to offer new, updated Photoshop templates for the Twitter Bootstrap 3 grid.
TL;DR – download the PSDs here.
Inside the ZIP file you will find three PSD files. One for the 1170px grid, one for the 970px grid, and one for the 750px grid. Each template has guides and a shape layer showing you columns along with another shape layer showing the main container size.
I’ve also included a screenshot of the grid info from the Bootstrap documentation for quick reference.
I hope this helps make your design process a little more efficient as you help continue the mobile responsive web movement.