Door that is required by constructional laws to secure space for evacuation. Fire door provides the best means to protect lives and assets from fire, an unforseen accident. As balcony expansion is legalized and accordingly secure of indoor protective space is required, our wooden fire door was developed to provide not only the fire-resistant function but also interior effect in good harmony with ordinary doors. Our wooden fire door has the same appearance as existing ordinary doors. But, in case of fire, it keeps fire from spreading for a certain time and provides sufficient time for family members to escape from fire, to protect assets and lives of family members. It is made in the environment-friendly process and of the perlite mineral core. Because processing works such as N, C, grooving and moulding, are freely done and there is also freedom in designs from natural pattern wood to painting and deco-sheet finishing materials, it is possible to maximize the interior effect as an inside door along with realization of its fire-resistant function.