thinking about screen sizes

Why do we need to design for all resolutions?

Web site design scalability - As technology advances and the configuration of monitors keep increasing it is impossible to test your site in all screen sizes. Designing stretch layouts that fit any screen resolution ensures that you know all your visitors see a visually appealing and professional site. Check out our website in different screen resolutions, you will find that it will fit the screen width.
To fit available browser space for easy reading - Try out a fixed width site in all resolutions (especially higher than 1024x768) and see how empty and unprofessional it looks. Now take a look at this article page in all the resolutions and feel the difference. If it is necessary for you to keep a fixed width then we have given suggestions on how to do it more professionally (read below).
To keep your viewers on your site - A site that is easy-to-use always encourages visitors to stay and read your content. For site with long pages of content this is very crucial as the amount of scrolling required is reduced. Suppose your site doesn't look good for a particular resolution it is very probable that the visitor will close the browser window feeling that the web page is not for their viewing.

There are more than 40 different screen resolutions.
1024x768 is the most popular resolution used (getting the lions share of around 60%) followed by 1280x1024 and above (around 25%) and 800x600 (around 14%). 98% of users have 800x600 and above resolution, thus, 800x600 can be taken as the minimum resolution the site should fit (other lower resolution are seldom used).