Complex sentence: The longest sheets were about 16 feet long and if the finished sheet was 8 feet or less in length the 16 foot sheets were folded at some point during the process so the mill crews never had any easy orders to fill.
Split into simpler sentences: The longest sheets were about 16 feet long and if the finished sheet was 8 feet or less in length the 16 foot sheets were folded at some point during the process. Because of this the mill crews never had any easy orders to fill.