Originally Posted by m5james

Since Zero's pictures show measurements on the outside of the box, one would assume that's the total measurement. The only thing you need to be aware of is that the size pieces are 1.5 smaller than the measurements since the all the front, top, bottom, back pieces are all screwed into the sides. I made a duplicate of Zero's box in cardboard, and while it's a great design, it's similar to the stock enclosure in that it doesn't use every drop of possible space. I'm guessing this is so it can be installed and removed easily.

I started completely from scratch using cardboard to make my own enclosure and Zero's box could fit inside of my own design. I never finished making the top portion 100%, and my dimensions would have probably been a feet in itself to make the cuts and still have it fit, but I was going for as much total interval volume as possible. I may finish the MDF version, but in the meantime you can see that from my post #113 that I'm going to take a stock enclosure and enlarge it in certain areas and see how it sounds. If the modified stock enclosure isn't enough, then I'll go back to the MDF enclosure and take measurements for those who want more airspace like I do.