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 91.0 71.4 30601 1353 18.3 1.04
Per D 181.9 142.8 61202 2706 18.3 2.05
Per m of wall 135.4 106.3 45537 2013 18.3 1.53

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