Hello!
Thank you for posting your question regarding WordPress and BoldGrid integration. I’m happy to be able to assist you today with that.
It is not necessary that you have an existing WordPress site. However, in order to install BoldGrid, WordPress does need to be installed first. You do not need to have a site created already though. You simply need to install WordPress to install BoldGrid. I hope this helps!
Sincerely,
Carlos E