sidewalls combine what looks like a pair of doors with the crossbeam top
structure seen with
this is not quite true. To make a strong joint between the wall and the
cross beam, I made the walls 3” taller than the doors, and screwed them
firmly to the crossbeam. The decorative strips under the sign are thus 1
½” narrower on the sides.
picture above shows detail of how the walls are built up.
walls themselves are made essentially the same way the back was done. The
side edges were drilled to take furniture fasteners, and bolts driven
through the arch protrusions to screw into them, thus joining the
sidewalls to the arches.