While making a site using web templates a person can make a base template file where it is possible to specify the non editable and editable regions separately. People also prefer the template based sites as they tend to be search engine friendly if the template is optimized properly. One can take the help of certain web site design software like Dream weaver for creating website templates easily. However, it also helps if one knows HTML to an extent.
While people having skills in HTML and other web scripting languages can opt for designing their own site it is not a viable choice for everyone. Some of the web designers use pre defined and readymade web templates for quick and effective site designing.