Picture shows a successful use of a bordered rug with a sectional sofa. The key is to have the correct rug size to enable the border to be revealed equally in front of the two sections of the sofa (or -- in the case of the furniture "floating" in the room -- behind the long and short sections.) The rug should be large enough too to connect with the chair across the room. As seen here, that chair normally will be placed across a corner of the rug; although that does vary with room arrangement.
Notice too how the rug really pops with the artwork above. A lot is accomplished in an apparently small space.