enclosure bracing

well the purpose of bracing an enclosure is to try and make the box as solid as possible so it will resist flexing.  what i like to do is add more wood to the inside of my enclosure. what i end up with is something that looks like it has several different chambers inside the enclosure.  the way i overcome this by cutting holes into the wood that i add so all of the different chambers are actually connected to form one chamber for each driver.  remember, you have to compensate for the added displacement of each piece of wood you add, and subtract the hole you cut.   this is just how i do it, i am sure there are several different ways to approach this.

There are a lot of ways to add bracing; just keep in mind that it is the very center of each baffle expanse that is most subject to flexing.  Bracing from center to center is ideal but not always possible, such as from center front to center back.  So, brace as close to center as you can.

This pic illustrates one of a number of ways to use up scrap lumber to make the braces.  A common way is to use a full size interior baffle and rout large holes in it, as was described above.

I've read you ideally want to make them slightly off center so you don't have two of the same size panels that will have the same resonance.  Maybe that's looking to much into it though.