Help with FG box

When I did my boxes, I did 5 or 6 layers on the backing, and then I only did 3 on the front.  When you're doing the front, the first thing you do is soak the fleece.  Saturate it completely (all the way through), including the overlap.  The overlap itself should be roughly an inch past the edge of the backing, or more if necessary.  By soaking this all the way through you bond the fleece to the backing, but remember to try and keep it as flat as possible.  You dont want any huge ridges/folds or else you'll need to file/sand them down and fill them in later.  After this you put on a few more layers of mat and you're done.  When putting the mat on, go past the overlap to ensure a good seal/bond.  You can also put a layer on the inside where the seam runs (front meets back).  Also remember that the fleece itself counts as a few layers since it can suck up alot of resin and has a substantial thickness, so you don't need as many mat layers.  I should also point out that the bigger the sub and the more power you'll be running will determine how many layers you need.  A 12" at 300 rms will easily be fine in this box, but a 15" at 1000 rms will likely need a few more layers.

Anyhow, if you do it like this you shouldn't have a problem getting the enclosure in there.  The trick is to make the overlap as small and flat as possible without compromising strength.

i did mine just like bryce said.  the edges are a little are a little thick, but it still fits just fine.