The slip of a timber wall is computed using the slip modulus. For a 4 mm nail in common C24 timber, we obtain a slip of 793.981 N/mm per shear plane. Now, all that is left to do is to consider the mean value of the stiffness and the partial safety factor, which is omitted in this example. The distance between the nails used then gives the necessary longitudinal stiffness of the joint.
In this example, a nail is defined every 10 cm.
This results in a stiffness of 7,939 kN/m².
