Tudor Cornice Kit- 15 in outside to 12 in inside to 15 in outside (Min 48 in window) The Tudor is a custom made cornice that the left and right transitions remain the same. The width of the cornice is modified by changing the width of the center section. The minimum window width is 48" due to the transitions. The kit includes 2 end caps, 2 transitions, center pieces, 3" or 5" brackets, instruction sheets, mounting hardware, and the magic tuck tool. The foam is 2 1/2" thick. This cornice looks good in all sizes windows since it transitions from a 15" to a 12" height. Bracket options: 3" brackets are used for recessed blinds allowing 3" of clearance off of the wall. 5" bracket allows for 5" of clearance off of the wall for outside mounted blinds and draperies. Assemble the kit with a low temperature glue gun, which we sell in the glue Call Claudia with any questions, we are here to help you decorate your home.