All bingo paper is cut from a master sheet. Following are examples of master sheet sizes: a 24 ON layout has 24 bingo faces on a sheet, a 30 ON layout has 30 faces on a sheet and a 36 ON layout has 36 faces on a sheet. Certain cuts come naturally from certain master sheets; other cuts (as in a 15H5 taken from a 36 ON layout) require an off cut – which can be packed together, packed separately or discarded.