Download Autocad DWG file. 

                  Sectional area (cm2) Mass per m (kg/m) Moment of inertia (cm4) Section modulus (cm3) Radius of gyration (cm) Coating area* (m2/m)
Per S 113.6 89.2 30580 1490 16.5 1.04
Per D 227.2 178.3 61160 2975 16.5 2.05
Per m of wall 152.6 119.8 41060 2000 16.5 1.38

*One side, excluding inside of interlocks. S = Single Pile |  D = Double pile