Sorry, Richard

I forgot to say that the data sheet what I used is from Pathway's form and
I got the information from them that all the axial and lateral stiffness should consider "Whole" stiffness to avoid confusing.
My question is how do we input the right value in the vendor data sheet ?
As I know , especially, the "Whole" lateral stiffness is related to the total length of pressure balance EJ ; is there any formula applied for this ?

Best regards,