12" Single ported subwoofer box

hello this is Mark with car audio fabrication and welcome to my first free design video this box that you see on screen is two-and-a-half cubic feet net volume and it is tuned to 34 Hertz this is for a 12 inch subwoofer in this particular case I use the fi BL 12 stay tuned in to the rest of the video and I'm going to give you the dimensions for this box now first we have our overall enclosure dimensions here you can see we have a width of 25 inches a depth of 19 and about a half inch and a high of 15 inches and also called out on your screen is port ones length dimension and port 2 as well as the width of the port now of course you're going to need a foundation to start your box on so this is the bottom piece of the box 25 inches wide and there's your depth once again and in this box we're going to be using your average thickness of MDF 3/4 inch all right and of course on the bottom we'