Maybe this is not the best chosen wood for kitchen use, yet maybe not. I had just enough cut offs, nothing more. For quite sometime now wife has been using shoe boxes to hold the spices, I think we could do slightly better than just cardboard.
Box materials were ready for assembly.
After trying out different type of clamps and caulks, I found that the best securing method to let glue dry was to use tape butting up the joints tightly and flipped them after glue was applied. Tape provides just enough holding power and not too much to force box changes out of square.