The invention relates to a sheet pile section for erecting partly or continuously double-walled sheet piles comprising a web and two flanges welded to said web and projecting on either side of said web, each flange-end being designed as one half of a connecting lock for interlocking with an adjacent section, wherein the improvement resides in that the flanges are provided with the same wall thickness over their total extension and with hook-shaped ends which are formed by cold roll bending and bent back towards the web. This section, the web width of which may be freely chosen, is capable of absorbing great axial forces and bending moments. Also, it is capable of exercising high resistance moments with respect to its weight.