First time building ported box. Does this look right?

[de8212 10+ year member]

I've never built a ported box and haven't built a sealed one in a long time. Also never used a box program. This would be for a 12" RF P3 (still deciding if that's the one I want). This will go in my Jeep just fine. How do I know what Hz to build the port wall? RF says a wide range of Hz. I just left the program at default.
Inside do i need to add 45 degree pieces in the corners?
I plan to extend the sides (and reduce the front) so I can downfire the box. Port would come out of side top. How much space should the sub realistically be from the floor? ~2"?

Any other tips?

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[Buck 5,000+ posts]

Do you want me to design you one?

 

[de8212 10+ year member]

Do you want me to design you one?

Thanks for the offer. I may look into it but right now I can't seem to decide which sub. And this will just be a typical square/rectangle so I was hoping I could just get some help and do it myself.
Your designs/work is incredible.

 

[Buck 5,000+ posts]

Thanks for the offer. I may look into it but right now I can't seem to decide which sub. And this will just be a typical square/rectangle so I was hoping I could just get some help and do it myself.
Your designs/work is incredible.

Thanks! I appreciate that