there are 2 options:
1) Add the menu to your site pages using Framework builder plugins
2) create a template for your site and convert the template to a theme, then add the menu to template and base the pages on the theme.
3) A combination of 1 and 2 - Convert the template to a them. add the menu to a page, and add the page to the theme using a plugin. then base the site pages on the theme.
personally, I prefer option 3.