FoldingMin. Sheet Size 2 1/8″ x 2 3/8″ Max. Sheet Size 30″ x 54″ Spine Thickness NA FoldingMin. Sheet Size 2 1/8″ x 2 3/8″ Max. Sheet Size 30″ x 54″ Spine Thickness NA Folding Made EasyAt Phil-Mar, the folding possibilities are endless. Any combination and number of multiple folds is achievable. Request A QuoteSubmit