A handy EXCEL spreadsheet to calculate rail, stile and panel sizes for Raised Panel Doors. Includes 3 sheets: Single Panel Doors, Vertical Paired Panel Doors and Four Panel Doors. User enters overall size, Rail and Stile widths, Groove depth and expansion allowance. A simple dimensioned diagram and table are calculated. Calculations assume cope and stick bits, but I've added a table segment to calculate rail lengths that include a tenon twice the groove depth (for making haunched tenons).