Lets be honest. There are developers who love all of the additional styling for forms, typography and widgets that come with Bootstrap and there are those who absolutely despise everything Bootstrap has and stands for, with exception (for most) the great grid system.
Recently I wanted to use the Bootstrap grid system but without having to use Bootstrap itself. While Bootstrap does offer the ability to customise your download, if you are like me and you use JSPM or Bower for managing stuff like this or you use Git sub-modules, then including just a stylesheet file into your project isn’t the most ideal approach.
Fortunately, someone has done the work for us and created a standalone version of the Bootstrap Grid System. You can read all about the bootstrap-grid package here on NPM. Really there is nothing to it other than a standalone CSS file.
Bower
You can get it from Bower by typing: bower install bootstrap-grid --save
NPM
You can get it from NPM by typing: npm install bootstrap-grid --save
There are plenty of other ways to get just the Bootstrap Grid System, but if you are like me and you always choose the quickest and best solution (no point reinventing the wheel, right?) then the bootstrap-grid package has been helpful to me.