Use Rectangular tiles and put them lengthwise in the hallway, to make the lines in the floor recede outwards. use a lighter colour and matching grout to not make the individual tiles stand out. if possible keep the walls light and furniture thinner, but still proportionate to the room. even small rectangular tiles in the mix or diamonds spaced out will draw the eye down the room's length

Could a certain design be used and would a different color trim around the border make it appear more formal?

Thank you for your support concerning this matter.

Pam

I think a border would be more formal and would make it look bigger.

Thank you so much for your input. I sincerely appreciate your attention concerning this matter.

Best Regards,
Pam

Your welcome! good luck!