This study presents a preliminary evaluation of locally sourced laminated petung bamboo (Dendrocalamus asper) fabricated using PVAC Crossbond X4 adhesive and tested under short-span bending–shear and modified axial-loading configurations. Petung bamboo from North Toraja, Indonesia, was processed into longitudinal strips and bonded into rectangular laminated members. The fabrication records indicated a moisture content of 12.0 ± 1.5% and a density of 720 ± 45 kg/m³. Three specimens were tested under short-span four-point bending–shear, and three specimens were tested under modified axial loading. The bending specimens had dimensions of 600 mm × 20 mm × 150 mm, with a support span of 450 mm and a shear span of 150 mm, resulting in L/h = 3 and a/h = 1. Therefore, the bending response may include shear deformation, local bearing, local indentation, inter-laminar stress transfer, and deep-beam-type behavior. The modified axial-loading specimens had a height of approximately 600 mm and a loaded cross-section of 20 mm × 150 mm, without independent lateral restraint. Under short-span bending–shear loading, the maximum loads were 13.13, 11.73, and 9.00 kN, with an average nominal flexural stress of 11.28 MPa. Under modified axial loading, the maximum axial loads ranged from 361.69 to 374.02 kN, with an average nominal axial stress of 123.08 MPa. Visual observations indicated fiber cracking or buckling, local crushing, lateral deformation, and apparent inter-laminar separation. The results provide preliminary comparative evidence for laminated petung bamboo, but they should not be interpreted as standardized material-strength properties or design-level values.
