I don't see anything wrong with the RadGrid. Maybe you want to have a bottom border? Here is how to add it with CSS:
.RadGrid_Sunset .rgDataDiv .rgMasterTable
border-bottom:1px solid #cabaab;
However, this will make the control look a little strange, because you will have two bottom borders and empty space between them. If you always have only a couple of rows, maybe it will be better not to use RadGrid scrolling with static headers.
the Telerik team