Abstract: A system and method regarding structural panels are disclosed which the structural panels have marginal edges with bevelled portions with increased surface area relative to non-bevelled edges. The bevelled surface areas are oriented in confronting relationship so as to define a longitudinal seam. An adhesive compound is provided in the seam. The adhesive compounds fills the volume between the opposing bevelled surfaces and provides sufficient shear and tensile strengths needed for joints. A finishing compound covers the adhesive compound wherein the finishing compound is compatible with both the adhesive compound and the structural panels.