If I could give 0 stars I would.  This headboard is marketed to work by itself with a metal bed frame.  It cannot.  It is too wide to work with the mounting brackets of a twin bed frame.  Even the installation instructions show it being installed with sideboards, slats, and a matching footboard.  To be fair, Wayfair made it right by waiving return shipping due to the improper mounting  information on the website.