This I made in a day with a hand saw and tape measure. It's 36.5 x 36.5 inches, holds 96 bottles, or 104 if you fenaggle a couple more in. Each diamond holds a case, each triangle holds 6. Sorry for the cell-phone pics.
Each inner board is notched so that they slide together, no nails or glue needed.
Each inner board is notched so that they slide together, no nails or glue needed.