Use the below calculator to assist in subtracting the space your flanges will be using from your wall to wall measurement.
Example: BOX1, Enter Wall To Wall Length, say 48 7/8.
Middle Box: select - For Subtraction.
BOX3: Enter 1/8, 1/4 or 1/2 for the space your flange selection uses. Click Calculate.
The Results will be your custom cut length for your rod.

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