Plywood QC Inspection Checklist : Part 38 Thickness Tolerance

Plywood QC Inspection Checklist : Part 38 Thickness Tolerance

ALmost all the buyers or sellers have their own  thickness tolerance checklist and rules , thickness variance allowed in HPVA panels (Hardwood Plywood & Veneer Association), IHPA plywood (International Hardwood Plywood Association) and Mills’s  spec (Factory own tighter specification).

It is easy to see that  HPVA standards allow the largest variance in thickness of all the standards!  However, the IHPA standard allows thinner panels than HPVA. More and more buyers  buying from suppliers that can hold tighter thickness tolerances and   are allowing less overall thickness variance.  In addition, while  their plywood are produced as 18mm, the thickness range is within the range allowed in 18mm plywood per HPVA. Thus (technically speaking)  18mm can be called ¾” (you may notice that your plywood is marked as ¾”, ½” etc.).

EU also have their Thickness inspection rules ,the thickness tolerance are various ,also the middle east ,africa ,asia ,latin america ,mexico ,north america

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