This research aimed to study the manufacture of fiberboard remainder of coconut. The purpose is to study the feasibility of the remainder of the coconut coir dust and coconut fiber to cool the compressed powder gypsum binder is 450 grams . The size is 300 × 300 mm , thickness 10 mm , then take a piece of plywood that was to test the mechanical properties and tests the physical standard JIS A 5905 showed that the tested compounds can not pass the benchmark specification . mechanical For the physical properties is found . The moisture content . Density . The swelling when immersed in water and the water absorption of the benchmark .