The structural strength of the ECOPODE™ may differ slightly according to the type of rock-like skin selected. However, the minimum unit strength required will at least match the strength of the ACCROPODE™ II unit used underwater, since the two types of units have a similar geometry.

Concrete strength specifications  

	Min.compressive strength Fc at 28 days	Min. tensile strength Ft at 28days
Unit volume £  8.0 m3	30 MPa	3.0 MPa
Unit volume  > 8.0 m3	35 MPa	3.5 MPa