Hey Parth,
Believe it or not, I’ve never actually used Bootstrap, so I wouldn’t know the first thing about where to start with Bootstrap on something like that.
However, a few things that might be helpful:
— I’ve created my own CSS grid along with some other tools here: https://generic.tools/
— If you’re building this site on WordPress, all that design above would require is a basic left sidebar page template or to switch the #content and #sidebar floats for whatever theme you’re working with if there isn’t one.
Thanks