People new to using handmade papers may need to be warned about some of the small things that could be a problem, depending on their needs. For most folk the advantages of handmade paper far outweigh these matters, which they consider unimportant or trivial.
Precise sizing of the sheet is a problem. Fibre slurry is poured into a mould from which the water drains, leaving the mass of fibres which make the paper . The mould usually has wooden edges, and as the moisture drains away, and then starts to dry, so there is shrinkage away from the edges. This shrinkage is not always as even as some people might wish. There are small ridges and bumps, giving the main characteristic of handmade paper ~ the deckle edge.
Sometimes the shrinkage is uneven along the length of the sheet ~ leading to a shape which is not perfectly rectangular.