How to measure Port Length

[UMGixxer]

Ok my port will be parallel with the bottom piece of the box and using the bottom piece as one of the walls, but the front edge of my bottom piece is S shaped, and the port will also be in the middle not using any other walls as part of the port, so how would I measure my port length???

[Sanitarium]

Ok my port will be parallel with the bottom piece of the box and using the bottom piece as one of the walls, but the front edge of my bottom piece is S shaped, and the port will also be in the middle not using any other walls as part of the port, so how would I measure my port length???

measure as if straight down the middle of the port, then add half the height to the length.

[UMGixxer]

if the calculator says i need lets say 20" of port length, and my port width is 4", do i make my wood 20" or 22" or 18"?

[MrSkippyJ]

if the calculator says i need lets say 20" of port length, and my port width is 4", do i make my wood 20" or 22" or 18"?

what is your port height??

[UMGixxer]

see thats where i get confused, but ok from left to right is 12" from top to bottom is 3", to me width would be the 12" but im not sure what that calculator wants, oh yeah the base board is 30" deep, when do i need to consider end correction

[UMGixxer]

???

[real_rudeboi]

how do you measure port length?

[Jaloosk]

I think you need to post a drawing of what you're talking about.