Is this to correct way

[NighthawkFG 6]

Is the correct way the measure a port that has a 45 in it or do you measure like a standard L-Port.

[MikeMartel 64]

Looks about right to me.

[AXEHAMMER 16]

Looks about right to me.

I agree OP, but take it with a grain of salt as I am far from pro.

[NighthawkFG 6]

Thanks, been so scattered brained lately I've started to doubt my self.

[mklett33 32]

I always take into account the distance to the center of the port by adding half of the port width as well. I am guessing that port is 3.5"-4" wide?