Japanese Wood Beyond the World
Common types of wood
# Tosa Cypress (TOSA HINOKI)# Tosa Cedar (TOSA SUGI)

Kochi prefecture in Shikoku region has been a famous cypress production area since

The production areas for the various types of Japanese cedar are found throughout

ancient times. Kochi has been called 'Tosa' in ancient times, so the timber produced

Kochi Prefecture, including the nationally famous Yanase cedar and the beautiful

here is variously known as Tosa cypress, Hata cypress, and Shimanto cypress.

Reihoku cedar, which features a pale pink core. Because the wood of these trees is

Characterized by a vivid red core and strong scent, Tosa cypress, which is renowned

straight and well colored, cedar is mainly used as construction materials.The wood isfor its durability, contains large amounts of oil that increase the gloss of the woodcharacterized by the beautiful appearance of both the cross grain and straight grainsurface as time passes. The characteristics of Kochi-produced cypress are evaluatedsurfaces.

highly.

Growing area for Cypress and Cedar# KOCHI in SHIKOKU region
Kochi is a prefecture of forests, especially with steep mountains and having Japan's

KOCHI

highest proportion of forested land with 84% of the area covered in forests. Kochi isknown throughout Japan as the birthplace of pristine rivers, such as the Shimanto
River, Niyodo River, and Yoshino River, whose crystal-clear, pure waters have been▶

nurtured by the region’ s abundant forests and the hot, humid climate.
Renowned nationwide since the Muromachi period (1338–1573), the excellent
quality Japanese cedar and cypress trees grown in these abundant forests have been
widely used in the construction of houses, Buddhist temples and Shinto shrine

SHIKOKU Regionbuildings.

Uses of wood
# Public Building# Products
InsideOsaka Castle（Osaka-jyo）

Kochi Station

Tosa government office

Historical buildings such as Osaka Castle(Osaka-jyo) and Kiyomiz Temple(Kiyomizu-dera) have been used a large amount of timber sent from Tosa to constructsince ancient times.
Even today,it is actively used for the public building construction such as the station,
government offices, and shopping areas. There are many benefits by using wood for
public buildings, such as psychological benefits like making people relax,
stress-reducing by scent of wood, also it can save air conditioning costs because usingwood can keep inside of building cool in summer and warm in winter.

Outside

Kumiko Endurance Wall

Various Products

The endurance wall, using the joining method without meatals named KUMIKO has
been represented one of Tosa architecture. It is a craftsmanship that expresses the beautyand strength of Japanese architecture and makes the wall stronger at the same time.
Also, benefits using cepress and cedar for forniture and toys has been well known
because it is good for growing up kids and safety. Japanese Cypress and Cedar has beenused a lot of products as the basic of Japanese living culture.

Trade performance

REPUBLIC OF
KOREACHINATAIWANSoutheastAsia▶

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Exportable products# Cypress Log# Cedar Log# LumberArchitecture example

Flooring

Walling

The mainstream of private residences in Japan is wooden buildings.
Wood is a natural material with excellent heat insulation and hygroscopicity, it has beenused for a long time for structural materials such as columns and beams. It has beenused not only as structural material, but also for floor, wall and ceiling since a very longtime ago.
Japanese traditional home has consisted of natural materials such as cypress and cedar,including tatami mats and shoji screens. It can give healing and comfortable atmospherefor people living there.

Nahari Office, Maruwa Forest Co.,Ltd.
* One of our office was build by CLT method, and it has achieved
Japan wood design award 2020.
The number of building which was built by CLT method in Kochi isthe largest number in Japan.
Recently, wooden buildings using CLT panels have applied to highbuildings. Compared to the Laminated wood, CLT is stronger and its
strength is similar with concrete-structure(RC), because CLT iscrimped in multiple layers with three to nine layers alternately in thefiber direction, it can make it difficult to deform and gathering
attention.

# CLT = Cross Laminated Timber
It is a prefabricated panel of wooden boards
glued together perpendicularly to one another,with structural adhesives.

Contact information

Maruwa Forest Products Co.,Ltd. (Maruwa Forest Group)
Address: 3-303, Chiyori-cho, Kochi-city, Kochi JAPAN 781-0806
TEL: 81-(0)88-884-1686
Email : toiawase@maruwa-forest.co.jp