Japanese Cedar
Cryptomeria japonica
Also known as: Sugi, Japanese Red Cedar, Cryptomeria
Japanese Cedar is the national tree of Japan and one of the most important timber species in Japanese forestry. Lightweight and easy to work, it is used for construction, interior joinery, and traditional Japanese temple and bath building.
Botanical Profile
Cryptomeria japonica is an evergreen conifer native to Japan and China. It typically reaches 40-50 meters in height. The species is fast-growing and widely planted. Despite its common name, it is not a true cedar but a member of the cypress family.
Physical Properties
Heartwood is pale reddish-brown to pinkish-brown. Sapwood is pale cream. Density averages 350 kg/m³ with a Janka hardness of 230 lbf. Fine, even texture with usually straight grain. Very lightweight. Low shrinkage.
Workshop Notes
Blunting Effect
Very low - very soft wood
Gluing Advice
Excellent gluing properties
Finishing
Good - takes stain and finish well
Steam Bending
Good - can steam bend
Historical Context
Sugi has been used in Japan for over a millennium for temple construction, baths, and interior work. It is deeply embedded in Japanese culture. Modern plantations supply the majority of Japan's domestic softwood needs.
Technical Specs
Pale reddish-brown to pinkish-brown heartwood; pale cream sapwood
Sustainable - widely planted and harvested in Japan; national tree of Japan