Can someone check the cubic feet of my box

I have two vpro 154d I wanted a ported box but I'm thinking of going sealed   My box measurements now w-18 d-29 h1-39 h2-19    Port length 33 port height 17.5 port w 5 all this measurements are in inches thank you

You didn't provide the thickness, but you can enter your measurements into the calculators here: https://www.the12volt.com/caraudio/boxcalcs.asp the12volt • Support the12volt.com

The wood thickness is .75 just want to make sure it was right or should I just do a sealed box

It is impossible to give you an answer to this, not knowing how you designed the port tunneling... Did you add 2 sides to create the port? did you use one of the side walls? It is best for you to just use the tools supplied on the site, calculator..etc. as the admin supplied a link to.. I dont want to sound insensitive, nor does anyone else, I presume, but you just wont get many replies to a post such as this. the site is awesome and the members even more so, but there are just some answers you cant get an answer for.. good luck with your design and your system..noise is not music!