カーリーハワイアンコア材 5A グレード テナーウクレレ材 #KOA-870 : Hawaiian Koa Curly Lumber
Hawaiian Koa Curly 5A Lumber #KOA-870
■ 商品説明文（Product Description）
ハワイアンコア材
商品番号：KOA-870
希少な5A【上】グレードのカーリーハワイアンコア材です。
本材は幅広のため、テナーウクレレのトップ材として使用可能なサイズを確保しています。
深く美しいカーリー杢と、
ハワイアンコア特有のゴールド〜ブラウンの豊かな色味が特徴。
光の角度によって立体的に杢目が浮かび上がり、
高級感あふれる存在感を演出します。
ハワイ島の供給業者から直送された材を使用し、
再植林プロジェクトの一環として供給されています。
楽器製作をはじめ、
ナイフハンドル、ペンブランク、クラフト制作など幅広い用途におすすめです。
■ グレード / Grade
5A 【上】カーリー
■ サイズ / Size
約390×70–140×22mm
（長さ×幅×厚み）
■ 含水率 / Moisture Content
10％
■ 樹種情報 / Wood Information
樹種：ハワイアンコア
学名：Acacia koa
原産地：ハワイ州 ハワイ島
■ 特徴 / Features
深いカーリーフィギャード
ゴールド〜ブラウンの美しい色味
立体感のある杢目と光沢
希少な5Aグレード
テナーウクレレトップ材1枚分相当
楽器製作・クラフト用途に最適
■ 用途
美しいカーリー杢を持つ、
ハイグレードなハワイアンコア無垢材です。
テナーウクレレのトップ材、
ギターやウクレレのパーツ製作、
ナイフハンドルや高級クラフト用途にもおすすめです。
Why Is Everyone Obsessed with Koa?
You may often hear people talk about “Koa,” but what exactly is it?
Hawaiian Koa is one of the most prized and iconic tonewoods in the world, valued for both its beauty and sound quality.
About Hawaiian Koa Wood
Hawaiian Koa (Acacia koa)
Hawaiian Koa is a special wood that has been treasured by the Hawaiian people for hundreds of years.
Historically, it was used to make:
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Outrigger canoes
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Paddles
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Boxes
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Furniture
Today, Hawaiian Koa is highly regarded worldwide as a premium material for musical instruments such as ukuleles and guitars.
It is known as an excellent tonewood, producing a rich, warm, and balanced tone with beautiful visual character.
About Scarcity
Hawaiian Koa has a very limited supply due to extensive logging in the past.
Large-scale reforestation efforts have only begun relatively recently.
As a result, high-quality Hawaiian Koa is becoming increasingly rare every year, especially highly figured material.
About Grading
Grading Information
Our grading system is based on over 50 years of experience handling and supplying tonewood.
It is our own internal quality standard.
In the general market, terms such as “4A” and “5A” are widely used, but grading criteria vary from company to company.
By understanding our grading system, you can be confident that each grade meets a consistent and reliable quality level.
Grade Criteria (Simple)
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1A–2A: No curl to very weak curl
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3A: Medium curl visible at certain angles
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4A: Strong curl visible from any angle
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5A: Master grade with deep, beautiful curl
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5A+: Extremely rare, top-tier figure
Moisture Content & Drying
Our wood comes from naturally fallen trees or logs that have been air-dried in the forest for long periods.
Because of this, some pieces are ready to use, while others may require additional drying.
Hawaiian Koa is known as a wood that dries easily and is resistant to cracking and warping compared to many other tonewoods.
Easy Drying Method
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Place the wood so air can circulate freely
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Store in a well-ventilated area
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Use a fan to circulate air if needed
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Place a light weight on top to reduce movement
For material 20–30 mm thick, the recommended drying period is approximately 2 months in a well-ventilated environment.
Recommended Uses
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Ukulele making
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Knife and tool handles
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Pens, accessories, and inlays
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Box and small craft production
Measurement Notes
Because this is a natural wood product, the following dimensional variations may occur:
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Thickness: ±0.2 mm
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Length: ±5 cm
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Width: ±3 mm
The material is not a perfect rectangular prism, which is a natural characteristic of solid wood.
Please understand this before purchasing or processing.
Detailed information
Tree species: ハワイアンコア
Thickness:
Length:
Width:
Backing:
Number of leaves:
Made to order: KOA-870