SharePoint 2013: How To Create A New Site Collection
To create a new site collection on SharePoint 2013 server, open Central Administration and under the Application Management section select Create site collections:
Enter a Title and Description for your site, so for the title I am using Demo Site 1. Web Site Address you may select an alternative URL Path or use the default URL Path sites and then enter your URL name, for this demonstration I will use DemoSite1.
