Box Properties Name: Type: Vented Box Shape: Prism, square Vb = 6.974 cu.ft Fb = 35.47 Hz Fill = none No. of Vents = 2 Vent shape = round Vent ends = two flared Dv = 6 in Lv = 12 in Square Prism Box Parts 2 Top, 1 Bottom: 20 © x 49 (B) in 0.75 (thick) in 1 Front, 1 Back: 14.5 (a) x 47.5 (d) in 0.75 (thick) in 2 Sides: 14.5 (a) x 20 © x 0.75 (thick) in Vent Parts 2 Ducts: 6.25 (e), 6 (g) x 12 (h) in thats what the box designer gave me and he gave me some 3d deal of it also.