The Buckling Test Apparatus is designed to study the stability of structural elements under compressive loads. It demonstrates how bars deflect laterally and fail due to buckling before reaching their fracture point. One end of the test bar can be fixed or pinned to simulate different buckling conditions. A height-adjustable load-carrying cross-arm and hand-operated spindle apply compressive force, measured by a Bourdon-type gauge. A dial gauge accurately records lateral deflection for detailed analysis. The system allows experiments on varying bar lengths, materials, and support methods, with an optional transverse load application for additional shear force studies.