Résumé en anglais
Wood has been the most important material for Japanese buildings through the ages. Since ancient times, the timber of the Japanese cypress has been treasured as a material for building because of its various excellent characteristics. Besides, pine tree, Japanese cryptomeria, Japanese zelkova, Japanes chestnut, and western chinquapine have also been used. In old days, timbers were split with wedges, cut with saw, shaved roughly with adze and planed with the spear shaped chisel. After the 15th century, when the rip-saw and plane with stand were invented, the technique of producing building materials made a step forward.