Triple 18650 Box (Help)

[meatslab]

So I am going to be making a Triple 18650/ Dual 26650 box.
I was wondering what Hammond box would fit Triple 18650s. I know the 1590B fits two 26650s snug so with the extra 2mm will triple 18s fit?
Also was wondering if anyone has a quick wire diagram.
Thank you so much for any information that comes my way.

Meatslab

 

[GMayberry]

Remember, the "18" in 18650 means 18mm wide, just as the "26" in 26650 means 26mm wide. So 3 18650s would be 54mm wide, where as 2 26650s would be 52mm wide. Check the box measurements and go from there.