This paper presents an experimental investigation on the vibration performance of multi-layered timber beams assembled through compressed wood dowels (CWD). The experimental tests were carried out under free-free conditions. Two wood species have been considered for the laminates, namely spruce and oak. The dowels were either 68% compressed spruce dowels or uncompressed oak dowels. Natural frequencies, mode shapes, and damping ratios were assessed experimentally. In addition, similar glued beams made of both oak timber and spruce timber (conventional glulam) have been manufactured and tested for comparison. The obtained results showed high vibration performance quality of the beams assembled through compressed wood dowels.