Some dimensions are shown as slightly off; for example, the side panels are shown as just over an inch thick. That’s because the thickness includes their veneer, and I used the exact measurement from my digital calipers.Except for the back face of the front panel (baffle), the cabinet is lined with 1” fiberglass (or similar; your choice).The braces (inside the cabinet and the plinth) are fir.The braces running along the sides and back of the cabinet are glued and screw in place. The ones running parallel to the horn are glued in place and glued and screwed to the ones running along the back panel.