Go to http://underscores.me/, put in your theme name, click generate, and download the WordPress Underscores starter theme.
Unzip the Underscores theme you downloaded and go into the unzipped folder. There should be one more folder with the same theme name inside. This is your project folder and can be moved to a local WordPress install or put right on your web server.
Download the latest version of the Foundation front-end framework (complete), unzip it and place the whole Foundation folder into the underscores theme folder. http://foundation.zurb.com/develop/download.html
Also, add a custom menu in the functions file while you’re in there.
Create a foundation.js file and add this code:
Add a foundation specific row and columns for the files below, remove the sidebars, and add the Foundation off canvas menu for mobile devices.
Here is an example of the index.php code:
Create a home.php and copy the contents of your index.php file into it so we can have a custom homepage. Remove the generic h1 from header.php and put it in home.php. We don’t need duplicate h1s throughout the whole website.
Change the homepage content loop to use h2s. We only want one h1 on the homepage.
The code from this project is here: https://github.com/justinfriebel/wordpress-dealership-theme
It’s getting older every day, so if you want the newest version of foundation you’ll have to redo certain parts from above. I’ve currently updated the theme to use Foundation 5.5.0. Also, underscores places the theme name all over the code, so you might want to find and replace those parts too.