Measuring gable

House perimeter is 243’. If I measure the gable from interior soffit corner to interior soffit corner I’m getting hip. If I measure from roof tile gable start to finish I’m getting non-hip. 24’ vs 26’. Thoughts?

Measure from the roof tile, or top drip edge. I hope that helps

Thanks but the customer won’t be happy! It is what it is!

The York course taught that you measure the bottom chord of the gable…

Correct, measure the bottom chord is how I was taught on here.