OK, here are a couple more cool excel files / calculators that I made:

1) it’s an average R-value insulation calculator, for roofs with tapered insulation. Really good for getting the minimum insulation, but still meeting energy code:


2) Just a conversion chart for feet to inches / fractions of an inch, but also shows what feet/inches are in decimal. Cool for figuring out what the civil engineer or surveyor means when they do feet in decimal:


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