To convert any fungal fruiting body, new or seasoned.sup.4, into a board or shape conventional manufacturing processes, as described above, can be used. .sup.4 Seasoned refers to the process wherein a fruiting body is dehydrated over a periodof time either through low temperature (32 degrees F.-100 degrees F.) desiccation or in a high temperature (100 degrees F. through 1000 degrees F.) drying process.