Subwoofer box

[Xdq_21X]

Getting 2 12's American Bass XFL1244 2000 watt...I need a box for them but idk how to make a box so could someone design one for me please I have enough space for

Height-15"

Depth-20"

Width-40"

Any other information I'm missing?

[Joe X]

Amp, vehicle you have, music you listen and goals.

[Xdq_21X]

Amp, vehicle you have, music you listen and goals.

hifonics brx2000.1d, I have a Chrysler 200, I listen to rap/hip hop, and what do you mean by goals?

[Joe X]

So here is a suggestion for a forward firing sealed off setup which would require your rear seats to fold down, you may need to build inside, power: to subs rated, amp subsonic filter to 28Hz, minimum port clearance 5", figure is just an assembly guide:

NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside.

[Xdq_21X]

So here is a suggestion for a forward firing sealed off setup which would require your rear seats to fold down, you may need to build inside, power: to subs rated, amp subsonic filter to 28Hz, minimum port clearance 5", figure is just an assembly guide:

NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside.

how would you go about building the box inside the trunk? And if I needed to take it out after the build how would I?