The paper is aimed to describe an experimental program of cold-rolled aluminium alloy downturn lip channel beams undergoing global buckling. Cold-rolled aluminium sections can be seen as new products of BlueScope Permalite, and the downturn lip channel section is in the form of the channel section with a modification of the bottom lip direction. A series of four tests with two lengths were carried out at The University of Sydney. The experiments were driven by a dual-actuator loading system to ensure the applied load was in the upward direction through the shear centre of the investigated section specimens while testing. Global buckling failures were seen in all specimen tests. The obtained test results will be the base for the calibration of a finite element model and the proposal of new design guidelines for these section beams subjected to global buckling modes in further studies.