SVEZA Interior and Exterior Plywood grades Defects Part 35:Waviness (sanded plywood), rough saw cut, ripple
Waviness is the surface irregularity in the form of alternating arched elevations and hollows.
Rough saw cut is dense, not fully cut off woolly grain on the surface.
Ripple is dense pitting along the grain.
|Measured by the length and the width of the area occupied, or expressed as a percentage of the overall plywood sheet area.|