I received this from Enduraflood support the other day since I could not figure out how to count the inside corner vs the outside corners. They also said to count inside corners in a closet the same as any other inside corner. I thought this may help someone!
In our experience they take whatever number you enter and just add 10% to that. If you count 10 corners they should send you 11. How big was the discrepancy
The materials estimator grossly overestimated my inside & outside corners even though I counted them myself. The leftover materials are going on Facebook marketplace.
This is excellent. I wish they had this on the website because we get home owner questions about this all the time