Making a Custom Template Public
Requires Pro Lite or higher
By default, custom templates are considered Private and only available to you and those with whom they've explicitly been shared. However, if your use case necessitates making a template available to anyone (for example, as part of a tutorial), you can do just that by making it Public. Here's how:
On your Dashboard, locate the template you want to share.
Click the template's Manage icon.
In the sidebar, click Template.
In the first section, check the Public radio button.
Click Save Changes
You're done! Anyone* with the build link shown in the first section will now be able to select and use your custom template as a starting point for new sites.