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<blockquote data-quote="Jeffdachef" data-source="post: 8443567" data-attributes="member: 650438">They like 6 cubic feet or more man. 5.25 is far from optimal.You cannot choose 1.5 for wood thickness of the calculator if your top part is only .75 Its better to just subtract the 2nd layer of wood thickness all around from your dimensions and use .75 thickness for your box calculations.Your port is not a single common chamber. Your illustration shows you are using top, bottom and side thats 3 not 1.One would be this<a href="http://imageshack.com/f/9hbottomportboxj" target="_blank"><img src="http://imagizer.imageshack.us/v2/150x100q90/341/bottomportbox.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a>Two would be this.<a href="http://imageshack.com/f/2mmiddleportboxj" target="_blank"><img src="http://imagizer.imageshack.us/v2/150x100q90/94/middleportbox.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a>Yours is three and you are not gonna get an accurate common port chamber measurement if you use 1.5 wood thickness and your current height measurement the calculator wont read it properly.</blockquote>

[QUOTE="Jeffdachef, post: 8443567, member: 650438"] They like 6 cubic feet or more man. 5.25 is far from optimal. You cannot choose 1.5 for wood thickness of the calculator if your top part is only .75 Its better to just subtract the 2nd layer of wood thickness all around from your dimensions and use .75 thickness for your box calculations. Your port is not a single common chamber. Your illustration shows you are using top, bottom and side thats 3 not 1. One would be this [URL="http://imageshack.com/f/9hbottomportboxj"][IMG]http://imagizer.imageshack.us/v2/150x100q90/341/bottomportbox.jpg[/IMG][/URL] Two would be this. [URL="http://imageshack.com/f/2mmiddleportboxj"][IMG]http://imagizer.imageshack.us/v2/150x100q90/94/middleportbox.jpg[/IMG][/URL] Yours is three and you are not gonna get an accurate common port chamber measurement if you use 1.5 wood thickness and your current height measurement the calculator wont read it properly. [/QUOTE]

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