Patent ID: 7823347

Claim:
An elongated scaffolding member for use in high-rigidity structures, said elongated scaffolding member comprising an elongated hollow cylinder, a cross-section of the elongated cylinder having an uninterrupted circular inner contour and a circular outer contour interrupted by four equally-spaced radially-projecting flanges integrally joined to the elongated cylinder of the elongated scaffolding member, at the outer contour of the elongated cylinder, at 90 degree intervals about the circumference of the elongated cylinder, the elongated scaffolding member being capable of joining end-to-end to a second elongated scaffolding member, one above the other, by means of one or more structural end joint members, wherein the elongated cylinder has a length and a diameter, wherein said length is significantly longer than said diameter, and wherein the flanges extend the entirety of said length.