In SQL server data stored on page. Disk I/O operations are performed at the page level. A single page is consist of 8KB (8192 Bytes) and Eight physical contiguous pages are one Extents.
One Data Page (8KB) = 8192 Bytes
Page Header = 96 Bytes
Data Rows = 8060 Bytes
Row Offset Array = 36 Bytes
Total Bytes per page is 8192 Bytes
http://msdn.microsoft.com/en-us/library/ms190969(v=sql.105).aspx
Source : Microsoft
One Data Page (8KB) = 8192 Bytes
Page Header = 96 Bytes
Data Rows = 8060 Bytes
Row Offset Array = 36 Bytes
Total Bytes per page is 8192 Bytes
If you want to read more about page and extents please check out this below Microsoft linkshttp://msdn.microsoft.com/en-us/library/ms190969(v=sql.105).aspx
Source : Microsoft
