The first of the two connecting profiles of a sheet pile wall assembly possesses a base attached to a sheet pile wall, a neck strip projecting from the base in a predetermined direction, and a head strip of larger cross section on the free end of the neck strip for engagement with a claw strip partially surrounding the head strip. The second of the two connecting profiles possesses a base attached to a second sheet pile wall and a claw strip to secure a head strip. The head strip of the first connecting profile is thus configured both to secure the claw strip of a sheet pile as a sheet pile wall and to secure the claw strip of the second connecting profile.