Don t rely on the measurements too much as they aren t exact. The box is well constructed and sturdy but remember that you ll have to make your own template as the templates available here are for deeper boxes. If you have an electric guitar with a thinner body, this is your option, but again, make your own template because there are two types of boxes and this template is not available one amazon.ca at least. Also, make sure that your soldering Iron isn t set higher than 330 or you risk melting the battery studs.