The conservation methods for the charred-woods excavated under the Daewoongjeon Hall of Youngguksa Temple, Youngdong, Chungbuk, Korea were investigated. The tests revealed that PEG#400 10% for four days followed by gradual application of PEG#4000 10% to 40% showed the most stable and robust results, showing no cracks in macroscopic examination. This treatment method was applied to the two charred elements, which appeared to be the capitals at the excavated site. After the treatment, the consolidated capitals were transported to the laboratory, where they were retreated with PEG#4000 80% at .... Charred capitals showed also an excellent level of stability.