A metal sheet pile has an improved joint strength and is suitable for high productivity
manufacturing. Right and left end flanges are formed at opposite sides of the rolled
steel sheet pile. Joints are formed at edges of the right and left end flanges.
Cross-sections of the joints are point-symmetric or line-symmetric, wherein the
end flange and the joint are disposed so that a center of point-symmetry of a pair
of interfitted joints is located on or near a centerline of the end flange in the
thickness direction. Furthermore, the joint has a protrusion for preventing rotation
near the border between the joint and the end flange portion.
