Hi - they are called 'Decorative Mouldings' - have a look at these websites :)

http://www.wmboyle.co.uk/?gclid=CNmLz-C3...

Raised wall panels

http://www.wmboyle.co.uk/displayProduct....

Wall Decoration

http://www.oracdecor.com/en/wall-decorat...

Flexible Mouldings

http://www.wmboyle.co.uk/displayProduct....

Hope the above helps :)

all molding is considered decorative, the correct answer for that specific type is shadow molding

What is the rectangular border in the middle of a wall that is used for design purposes called? It's usually white, kinda like an over sized picture frame but for the wall?

I'm looking to get a couple for my room to place on either size of my window and I have no idea how to even search for some without a name :P

This: http://i1299.photobucket.com/albums/ag79/ReneeScott97/2014-05-1400_05_36-HowIKeepMySkinTanampMyTeethWhite-YouTube_zps982d0c01.jpg

Or like this but raised: http://i1299.photobucket.com/albums/ag79/ReneeScott97/IMG_2443_zps42a190c0.jpg