Measurement Guide

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Rough Opening Tips
•Verify the width and height of the door frame are each 1/2″ smaller
than the rough opening width/height.
•Verify the rough opening is square. The diagonal measurements
should be the same. Maximum allowable deviation from square is
normally 1/4″.
•Verify the rough opening is level and plumb. The maximum allowable
deviation is 1/8″ to 1/4″.
What is my Door Handing?
For interior double or French doors there are 3 handing options to
choose from: left-hand active, right-hand active and both active. For
left and right-hand active doors, both panels can be opened but only
the “active” door will have a working knob. The “passive” door will
have an astragal with a flush bolt that is used to keep the door closed
when desired. If a door is “both active” this means that neither door
will have a working knob and there will be ball catches installed on
the top edge of each door to keep the doors closed.