For one enclosure I came up with one sheet to get the front and back, the two port pieces and 3" port brace. A second sheet to get the top, both sides and the second front for double baffle. 3rd sheet only uses 32" x 22" for the bottom so could be used for 3 more bottom pieces. 4.5 sheets total for two enclosures or 9 sheets for 4 boxes. Bracing will be dowels or 2 x 2s attaching panel to panel.