Given that the header is secured to the cabinet overall body, nail the ends into the cleats close to the top in the header. (We nailed where by we knew the crown would protect making sure that no holes were seen) And after that taped to the inside of the http://paintforcabinetshomedepot47924.shotblogs.com/5-tips-about-how-long-do-painted-cabinets-last-you-can-use-today-18564081