A bokken ( _ja. 木剣, "bok(u)", "wood", and "ken", "sword"), is a wooden Japanese sword used for training, usually the size and shape of a "katana", but sometimes shaped like other swords, such as the wakizashi and tantō. Bokken (木剣) is a term for Bokutō in Japan, but is widely used in the west. Ken (剣) is used, at the beginning of a word, for terms having to do with the sword as in Kendō (剣道 "way of the sword") and Kenjutsu (剣術 "art of the sword"). In contrast, (刀) is used as a suffix as in shōtō (小刀:しょうとう, short sword) and daitō (大刀:だいとう); thus bokutō (木刀, "wood sword") is the most common terminology, as is used in Japan. [Japanese Wiki Page, Bokutō]

These should not be confused with shinai, the bamboo sword used in kendo.


A "bokken" is used as an inexpensive and relatively safe substitute for a real sword, in training for several martial arts.

"Bokken" are also used in the AJKF "Nihon kendo kata", a form of training to develop technically correct movements.

In 2003, the All Japan Kendo Federation (AJKF) introduced a type of practice using "bokken". "Bokuto Ni Yoru Kendo Kihon-waza Keiko-ho" is a set of basic exercises using a "bokuto". This form of practice, is intended primarily for kendoka up to ni-dan (2), but is very useful for all kendo students. ["Bokuto Ni Yoru Kendo Kihon-waza Keiko-ho" 1 June 2003, All Japan Kendo Federation, Tokyo, Japan.]

"Suburito" are "bokken" designed for use in "suburi". "Suburi", literally "bare swinging," are solo cutting exercises. Suburito are thicker and heavier than normal "bokken" and users of suburito have to develop both strength and technique. Their weight makes them unsuitable for paired practice or "kata".


Historically, "bokken" are as old as Japanese swords, and were used for the training of warriors. Miyamoto Musashi, a kenjutsu master, was renowned for fighting fully armed foes with only one or two bokken. In a famous legend, he defeated Sasaki Kojiro with a bokken he had carved from an oar while traveling on a boat to the predetermined island for the duel.

Types of bokken

The following list is the basic styles of bokken made:

# "daitō" or "tachi" (katana-sized), long sword;
# "shoto" or "kodachi" or "wakizashi bo", short sword, (wakizashi-sized);
# "tanto bo" (tantō-sized); and
# "suburito" can be made in daito and shoto sizes but are meant for solo training. They are much heavier and harder to use, developing greater muscles, increasing skills with 'normal' sized bokken. One famous user of the suburi-sized bokken is Miyamoto Musashi who used one in his duel against Sasaki Kojiro.

Bokken can be made in any style of weapon required such as nagamaki, no-dachi, yari, naginata, kama, etc. The examples above are the most widely-used.

The All Japan Kendo Federation specify the dimensions of "bokken" for use in "kendo kata". [Japense-English Di.tionary of Kendo. 1 February 2000, All Japan Kendo Federation, Tokyo, Japan.]
*Tachi: Total length, approx. 102 cm; "tsuka" (handle) approx. 24 cm.
*Kodachi: Total length, approx. 55 cm; "tsuka" (handle) approx. 14 cm.

Additionally, various koryu (traditional Japanese martial arts) have their own distinct styles of bokken which can vary slightly in length, tip shape, or in whether or not a tsuba (hilt guard) is added.


The quality of the "bokken" depends on several factors. The type and quality of the wood and skill of the craftsman are all critical factors in the manufacture of a good quality bokken. Almost all mass produced inexpensive bokken are made from porous, loose-grained southeast Asian wood.Fact|date=February 2007 These bokken may be easily broken when used in even light to medium contact drills and are best left for non contact work, such as in kata.Fact|date=February 2007 Furthermore, the wood is often so porous, that if the varnish is stripped off the inexpensive bokken, one can see the use of wood fillers to fill the holesFact|date=February 2007.

While most species of North American red oak are unsuitable for construction of bokken, there are some Asian species of red oak that have a significantly tighter grain and will last longer.Fact|date=February 2007

Superior woods, such as American white oak, also known as "Kashi" (not to be confused with Japanese white oak, known as Shiro Kashi, which is an evergreen species and lacks the weaker spring growth rings of the American oaks), has been a proven staple, having a tighter grain than red oak wood. Another choice, hickory wood, seems to have a very good blend of hardness and impact resistance, while still having a relatively low cost.

The use of exotic hardwoods is not unusual when looking at some of the more expensive bokken. Some are made from Brazilian cherrywood (Jatoba), others from purpleheart, and some very expensive ones made from lignum vitae. Tropical woods are often quite heavy, a feature often sought in bokken despite the brittleness of these heavy and hard materials. Many of the exotics are suitable for suburi (solo practice), but not for paired practice where there is hard contact with other bokken.

Some online retailers offer "bokken" constructed from polypropelene plastics. The exact applications and benefits of such a weapon vary depending upon the user.

Notes and references

Translation of the intro on the Japanese Wiki about Bokutō: Bokutō is an imitation Japanese sword, made of wood. It is made for practicing form (形 "Kata") in Japanese martial art (Kenjutsu "剣術") and it's also used for Kendō and Aikidō to practice repetitive, individual, cutting exercises (素振り "Suburi") and form. In Japan, Bokutō is called Bokken occasionally. There are ornamental Bokutō decorated with mother-of-pearl work and carving and also for sale.

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Bokuto in fiction

In Hiroyuki Takei's manga Shaman King, Ryu possesses a wooden sword.

In Hideaki Sorachi's comedic manga series Gintama, the main character Gintoki Sakata wields a bokuto bearing the kanji characters for Lake Toya on the hilt. Throughout the series, Gintoki maintains he was given the bokuto by a hermit while on a school trip to Lake Toya, but it is later revealed he purchased it on a home shopping channel. The sword is made of an alien wood, giving it superior strength, with it being able to break through wood, metal and other materials a regular bokuto would shatter against. In chapter 150 of the manga, it is revealed that the bokuto has a sword spirit much like Soul Reaper's in the manga series Bleach. Gintoki's sword spirit is a direct parody of Zangetsu, Ichigo Kurosaki's sword spirit.

In the science fiction series "Stargate Atlantis", Ronon Dex and other Atlantis expedition members use bokken for practice and sparring. However, the form practiced is not Japanese. Instead, the style employed by Ronon Dex and others is somewhat free-form, possibly based on a martial arts form in the fictional Pegasus galaxy. The bokken is more often held with one hand rather than two (in contrast with the characteristic two-handed Japanese style).

External links

* [ A discussion of different woods with regard to bokken design, focusing particularly on durability]
* [ Information about making or selecting a bokken]

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