audioarsonal 10+ year member
JaMarcus
Go to Menards or maybe a cabinet shop(probably more expensive)I haven't found it at any of the other places commonly checked (Lowes,HD).But if you look down the sides and front you can see little check marks where there is missing wood it should be solid all the way around.This is why it is sooo much more then the stuff from Lowes.If strenght is the only reason for using BB and your just building a standard box I would just use MDF and some good bracing and call it a day you will save alot of money.But if your building a wall or a big 24ft3 box then weight starts to come into play and this is where I would use BB.