In this study, the composite structural member of plywood panel - steel is proposed. This member is consisted that the steel column is sandwiched with two sheets of plywood. To investigate the resistant mechanism and strength subjected to vertical load, the compression tests are conducted. In this paper, the parametric study is performed to investigate the effects of the thickness and the width of plywood panel. From the test results, it is observed that the maximum strength is determined by the flexural buckling, and also this combined member behaves as the layered beam.
