Join Date: Jan 2013
Location: Colorado Springs
Sandeply (shown on your receipt) comes from Ecuador, so is metric. In this case, 18mm (but HD just doesn't seem able to cope with metric so they say it's close enough to be 3/4 inch to call it that). Your experience was on the low side of the tolerance for 18 mm (17 mm and change) If you want 3/4 ply, you have to buy hardwood plywood from a real lumber yard. I never cut dados for plywood until after I've measured the plywood at many, many points on its edge with a dial caliper.