Stu Miller's Dynamic Spine Calculator asks the user for the "strike plate position". How do I measure and add it correctly to the calculator?

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2 Answers 2


How to measure the strike plate position for the purposes of this calculation is given in the instructions for the calculator: enter image description here


ShemSeger has a great explanation.

If we zoom into the graphic you can see where the measurement is made:

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From blue line to blue line.

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