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<blockquote data-quote="Heresy" data-source="post: 91605" data-attributes="member: 540683">A box can be held together with nothing but wood glue or liquid nails if you clamp it tight and let it dry. Screws are mainly used because they are faster than clamping everything together and then unclamping everything. There is no wait time and you could literally make the box in a few hours.To seal the seams, either RTV silicon or fiberglass resin, IMO. If you do a good job with the gluing everything together you shouldn&#039;t even really need this but it is always a good idea to be extra sure.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue&nbsp; &nbsp; :p" loading="lazy" data-shortname=":p" />Braces should be put where the box stresses most i.e. long spances of board that are away from the walls. For two 15s in a single chamber, 3 or 4 vertical braces should work. Also, running additional braces where the walls meet help as well.I wish I could explain this all better. Here are a few websites that might help:<a href="http://www.dancetech.com/aa_dt_new/pa/construction.CFM" target="_blank">http://www.dancetech.com/aa_dt_new/pa/construction.CFM</a><a href="http://sound.westhost.com/sp-boxes.htm" target="_blank">http://sound.westhost.com/sp-boxes.htm</a>They aren&#039;t exactly sub boxes but they work.</blockquote>

[QUOTE="Heresy, post: 91605, member: 540683"] A box can be held together with nothing but wood glue or liquid nails if you clamp it tight and let it dry. Screws are mainly used because they are faster than clamping everything together and then unclamping everything. There is no wait time and you could literally make the box in a few hours. To seal the seams, either RTV silicon or fiberglass resin, IMO. If you do a good job with the gluing everything together you shouldn't even really need this but it is always a good idea to be extra sure.:p Braces should be put where the box stresses most i.e. long spances of board that are away from the walls. For two 15s in a single chamber, 3 or 4 vertical braces should work. Also, running additional braces where the walls meet help as well. I wish I could explain this all better. Here are a few websites that might help: [URL="http://www.dancetech.com/aa_dt_new/pa/construction.CFM"]http://www.dancetech.com/aa_dt_new/pa/construction.CFM[/URL] [URL="http://sound.westhost.com/sp-boxes.htm"]http://sound.westhost.com/sp-boxes.htm[/URL] They aren't exactly sub boxes but they work. [/QUOTE]

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