Can I change the width of my website design?

This is not possible. If the designs were any wider they would not fit onto smaller screened computers. The designs are fixed to a specific width to suit the largest range of computer screens and are in line with professional web-design standards.

Editors Note : I'm not sure how accurate this is. Most MrSite templates are set to 850px width. The most common screen width isb 1024px. The one below this is 800px so the templates are going to be too wide for these screens. For more information check out Screen Resolution and Browser Info.