You have three relatively easy options (that I can think of now).

a) Use a TEdit, set the readonly property to true and the enabled property to false. The text is greyed, but the control cannot receive focus.

b) Use a TStaticText. It can be configured to have a border and the background colour can be changed. It looks similar to TEdit but not exactly like it.

c) Use a combination of a TPanel (to give the border style and background colour) and a TLabel. Nasty, but it would probably end up looking like an enabled TEdit the most.

They are the three easy options I can think of off the top of my head.