Degrade panels are a “downfall” product from the manufacture of #1 sheathing and have defects in them that preclude them from being graded as structural sheathing under CSA standards 0121 or 0151. These defects may include: sheets off-square, out of thickness, missing edge veneer on one long edge and or short edge, core veneer laps and excessive core gaps. Panels must have a minimum of 28 square feet of useable panel surface comprising one good long and short edge.