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 67.9 53.3 5 128 477 8.7 0.91
Per D 135.8 106.6 10 256 954 8.7 1.77
Per m of wall 88.2 69.2 6 660 619 8.7 1.15

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