Abstract: A construction support having an outer tube extending in a longitudinal direction, and an inner tube arranged therein, extending in the longitudinal direction, adjustable in relation to the outer tube in the longitudinal direction and having an outer thread. The outer tube is an uneven rolled tube and provided with at least one guide groove during roll-production. The guide groove extends in the longitudinal direction and is open in the radially inward direction. The inner tube is a round tube and has at least one guide element protruding radially outwards that engages in the radially inwardly open guide groove such that the inner tube is interlockingly anti-rotationally arranged in the circumferential direction in the outer tube. An adjustment nut is arranged in a longitudinal end region of the outer tube in a captive manner such that it is rotatable in the circumferential direction.

Abstract: A construction support having an outer tube extending in a longitudinal direction, and an inner tube arranged therein, extending in the longitudinal direction, adjustable in relation to the outer tube in the longitudinal direction and having an outer thread. The outer tube is an uneven rolled tube and provided with at least one guide groove during roll-production. The guide groove extends in the longitudinal direction and is open in the radially inward direction. The inner tube is a round tube and has at least one guide element protruding radially outwards that engages in the radially inwardly open guide groove such that the inner tube is interlockingly anti-rotationally arranged in the circumferential direction in the outer tube. An adjustment nut is arranged in a longitudinal end region of the outer tube in a captive manner such that it is rotatable in the circumferential direction.