First fiberglass sub enclosure

I started making my first sub enclosure with fiberglass. So far its going pretty well, but now I am starting to worry about the weight of my sub. My sub is a Diamond Audio TDX 10. I just put it on the scale and its about 22lbs. Its a fairly large and heavy sub so now im trying to figure out how to support it in the enclosure. All of the projects that I've found online show wood dowels that are glued to the fiberglass. Does anybody have other methods to support heavier subs? Or will the wood dowels and fiberglass be strong enough to support it?

Also I read the article on fiberglass thickness but it didnt say if there should be a minimum amount of layers to use. Some parts of my enclosure are only 2 layers but it feels pretty strong. I used a combo of a thick chopmat and weave but I dont want to end up finding out later that even though it feels strong and doesnt flex much that its not strong enough. Thanks for any comments.

The wooden dowls are there just for support of the woofer ring. People usually take them out when they are done glassin'. If you don't feel that 2 layers is strong enough then add some more but as long as it doesn't flex when you push on it it will be good.

You need more than 2 layers... Even with thick chop mat. I would do a couple more. 4 should be plenty for a single ten.

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fiberglass reminds me of peanut brittle... but fiberglass tastes better!

We use 6 oz weighted matting and I normally do about 6-8 layers for a sealed 12 " subwoofer. Just make sure you do at least 4 layers before removing the enclosure from the vehicle so it doesn't warp. As far as the dowels you can always leave them in there as well as it won't hurt as long as they are out of the basket's way when inserting the subwoofer.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA