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<blockquote data-quote="nineball" data-source="post: 5712647" data-attributes="member: 585829">you don&#039;t want to use fiberglass for a box like that. fiberglass&#039; strength lies in areas with curves and it tends to be weaker over flat areas. whenever i build a fg box i always use as much mdf as possible during construction, and ALWAYS in the flat areas.on average a gallon of good quality resin is about $35 alone and 1 1/2oz chop mat costs about $2.50-3.00 per yard (plus shipping on each and hazmat charges on the resin). then you have to buy a mounting ring, painters tape, aluminum foil, wax, paint brushes, gloves, and a respirator just to start. keep in mind for most subwoofer applications the rule of thumb is to build it up until you can stand on it with no flexing, which usually requires 6-8 layers of mat if not more, per side. then the countless hours of sanding / filling / sanding / filling etc etc.most people really have no idea how much time, effort and materials are needed to build a quality fiberglass enclosure and just balk at the price. BUT, building a fg enclosure is not rocket science and can be done by the average user but don&#039;t expect quality results your first time out. check out <a href="http://www.fiberglassforums.com" target="_blank">http://www.fiberglassforums.com</a> and you will learn everything you ever want to know and more.</blockquote>

[QUOTE="nineball, post: 5712647, member: 585829"] you don't want to use fiberglass for a box like that. fiberglass' strength lies in areas with curves and it tends to be weaker over flat areas. whenever i build a fg box i always use as much mdf as possible during construction, and ALWAYS in the flat areas. on average a gallon of good quality resin is about $35 alone and 1 1/2oz chop mat costs about $2.50-3.00 per yard (plus shipping on each and hazmat charges on the resin). then you have to buy a mounting ring, painters tape, aluminum foil, wax, paint brushes, gloves, and a respirator just to start. keep in mind for most subwoofer applications the rule of thumb is to build it up until you can stand on it with no flexing, which usually requires 6-8 layers of mat if not more, per side. then the countless hours of sanding / filling / sanding / filling etc etc. most people really have no idea how much time, effort and materials are needed to build a quality fiberglass enclosure and just balk at the price. BUT, building a fg enclosure is not rocket science and can be done by the average user but don't expect quality results your first time out. check out [URL="http://www.fiberglassforums.com"]http://www.fiberglassforums.com[/URL] and you will learn everything you ever want to know and more. [/QUOTE]

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