International Fibreboard Casecode This code which is prepared in collaboration with ESBO (The European Solid Board Organisation), contains a methodical presentation of all existing box design styles, a code number being assigned to each design
As a reference document, the code is used world-wide and it has been adopted by the United Nations
Symbols used in drawings and computer systems
Drawing symbolComputer codeDescriptionCuts, scores, slits etc
CLcontours of erected cases or cutting lines of case blanksSCslotted cutsCIcrease lines (inward bend)COcrease lines (outward bend)SIslit-score lines (inward bend)SOslit-score lines(outwardbend)DSdouble-score linesPLperforation linesSEsoft edge cutting linesTPtear perforationManufacturer's jointSJStitched jointTJTaped jointGJGlued jointOpen