When drape measuring, there are a couple of ways to go.  In the drapery industry we refer to “On the flat” measuring as a simple concept.  When you take a gathered rod pocket drape or valance and lie it flat on a table you will be measuring the flat width.  If the flat measurement is 50″, you will typically get 25″ of window coverage when installed on the rod at 2 to 1 fullness.  Fullness is how much you gather the window treatment on the rod.  In our Budget custom department all sizes are “on the flat” sizes.  In our full custom and tradtional custom departments, the draperies are finished sizes so if you get a 25″ panel, that will be the finished width.

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