1X12" Detuned Speaker Cab
Here is a design for a 1X12 Guitar cab. Light, compact, sounds good. The "Detuned" theory comes from Kevin O'connor's book on speaker construction. Google on "London Power" if you are curious. Detuned, In a nutshell:
Here are some pics of mine, click on the thumbnails to enlarge.
It was constructed of 3/4" birch ply, fastened with carpenter's yellow glue and biscuit joints, and finished in satin polyurethane. Designed to be simply built but adequately strong, the dimensions were chosen to enable two cabs to be constructed from a single 4X8' sheet of plywood, with a minimum number of long cuts. The sheet can be cut into a few car-sized pieces at the lumber store. I have misplaced the layout drawing, so you'll have to figure it out. Note the grain orientation on this cab.
The cabinet measures 28X18X12".
Here are the dimensions of the pieces.
Sides 16.5"h X12" d
Top and bottom - 28" w X 12"d
Front 16.5h X 20"w
Back 16.5"h X 26.5"w