Depending on the product and configuration you want, choose one of these two methods to properly measure your window for fabrication and installation. And pro tip: measure everything twice.
WIDTH Measure inside the top of the frame.
HEIGHTMeasure both sides inside the frame. Use the shortest height.
DEPTHMeasure the depth of your window frame in three places, from the front of the opening to the glass. Use the shortest measurement.
ON THE FRAME OR ABOVE THE WINDOW FRAME
WIDTH Determine the position of the brackets on the wall or frame and measure the width between these points. Make sure there’s enough flat surface at these points to accommodate the brackets.
HEIGHT (protruding window sill) Measure from the window sill to three inches above the top of the window opening to allow enough room for installing the mounting hardware.
HEIGHT (no protruding window sill) Start measuring two inches below the sill for maximum coverage to three inches above the top of the window opening to allow enough room for installing the mounting hardware.
IMPORTANTIf you want to mount on the wall above the window frame, be sure to also measure the thickness of the window frame.
ON EACH SIDE OF THE WINDOW FRAME
A good option if your window isn’t deep enough or there are obstructions.
WIDTH (including trim or moulding) Measure the width of the frame from end to end and add ½ inch so the entire window area is covered. Make sure there’s enough flat surface on each side of the frame to accommodate the brackets.
WIDTH (not including trim or moulding) Add one to two inches on each side of your window to ensure maximum coverage of the opening and more privacy. Mark these additions on each side and measure the width between them in a straight line.
HEIGHT (protruding window sill) Measure from the window sill to three inches above the top of the window opening to allow enough room for installing the mounting hardware.
HEIGHT (no protruding window sill) Start measuring two inches below the sill for maximum coverage to three inches above the top of the window opening to allow enough room for installing the mounting hardware.