How long does the installation take? Posted on September 4, 2017 at 12:05 am by DecoClosets / 0 A How long does the installation take? Usually the installations of the closets take one day, but it is subject to change based on the complexity of the design / closet space. Share Post Previous What is the max width and height of the bars, shelves and verticals? Next What do I need to prepare to the installation day?