PURPOSE: To obtain a pollution-free sheet useful as a building material, construction material, agricultural material, stockbreeding material, etc., at a low cost while effectively utilizing sawdust, etc., discarded hitherto as industrial wastes by compounding wood flour, etc., with natural fiber, etc., and forming the mixture into a sheet with a wet paper-making machine.

CONSTITUTION: The objective sheet can be produced by compounding wood flour and/or bark with at least one component selected from natural fiber, synthetic fiber, chemical fiber and synthetic pulp and forming the mixture into a sheet with a wet paper-making machine. Preferably, the mesh size of the paper-making machine for the screening of the raw material is 30-120 mesh and the raw material is beaten to a freeness (Canadian freeness) of 100-700cc and compounded with ≥5% of natural or synthetic fiber.