Every sheet is off in the bundle. I have been building homes for 15 years and I've never run into this. Maybe with cabinet grade that comes an extra inch in both directions
You both screwed up. Thats admittedly way off even for treated, but you should always double check material. Complacency gets us all sometimes. 🤷 Live and learn.
Measure twice cut one and of your not buying a entire stack measuring the top and bottom piece you need to measure every piece dude is this your first week doing this
