First tape the area to be molded
Second put foil over the tape
Third lay fiberglass mat or cloth and resin
Fourth Let the fiberglass harden (completely) and remove mold

thanks for telling me. sounds pretty easy and then you would use sealant to attach it to the wooden part of the box right?

how thick do you make the fiberglass and does it hit as hard as a regular sealed box?

It is a lot harder the first and second time you do it. Before you lay your fiber you build up your wooden frame than lay matt over that.

but its definitely worth it because you'll make it the way you want it to look and besides i got my dad to help out. his really good at stuff like this

I use hot glue to attach the wooden frame to the fiberglass mold and also to glue the fabric to the mold and wooden frame. Spread resin over the fabric and let dry. At this point start adding layers of glass and resin. I do about two to three layers being sure to get any air bubbles out as I go then let dry. Last I add two more layers. The thickness depends on how big the area is and how many curves there are. The longer and flatter the area, the more layers I use. The more curves there are you may be able to get away with less since the curve will add strength. I wouldn't use less than 3-4 layers in any case.
If it is built thick and strong enough with no flex it will sound just as good as any mdf box.

thanks a lot im planing on doing this some time soon. i just need to purchase a higher quality subwoofer and amp. i dont like what i have now

Those boxes kick a$$!!! "$$$" in the words since you could probably launch a garage (!!!) business making those and selling them online...

Very Nice:tup:

Nice front speaker pick.

thats a huge amp!!!

That's what she said!

nice work

nice and sub'ed....