Why it pays to buy good plywood
As strong as plywood must be on the inside, it must also be pretty on the outside. Plywood grading, as much aesthetic art as science, designates one face as the front and one as the back; grading is on separate scales. Most domestic hardwood plywood manufacturers use the Hardwood Plywood and Veneer Association's (HPVA) voluntary standards for grading. The front face, judged for uniformity of color and consistency of grain, receives an AA, A, B, C, D, or E grade; see chart. For the back face, the grade is designated 1, 2, 3, or 4, with respectively less-restrictive allowances for defects and repairs.
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