ハワイアンコア 4A カーリー ソプラノウクレレ材 表裏サイド6枚セット #KOA-SP-TBS-070
ハワイアンコア 4A カーリー ソプラノウクレレ材 表裏サイド6枚セット #KOA-SP-TBS-070 : Hawaiian Koa Curly 4A Soprano Ukulele Top, Back & Side Set
■ 商品説明文（Product Description）
ハワイアンコア 4A カーリー
ソプラノウクレレ用 表裏サイド6枚セット
商品番号：KOA-SP-TBS-070
希少な4A【中上】グレードのカーリーハワイアンコア材です。
ハワイアンコア特有のゴールド〜ブラウンの美しい色合いと、光の角度によって立体的に浮かび上がる美しいカーリー杢が魅力です。
トップ・バック・サイドを木目と色味のバランスを考慮して組み合わせた、ソプラノウクレレ製作用6枚セットです。
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。
■ グレード / Grade
4A【中上】カーリー
■ 学名 / Scientific Name
Acacia koa
■ セット内容 / Set Contents
トップ材・バック材・サイド材 6枚セット（各パーツ2枚ブックマッチ）
■ サイズ / Size
トップ（Bookmatched Top）
約275×210–230×2.8mm
バック（Bookmatched Back）
約275×210–228×2.9mm
サイド（Side）
約390×80×3.0mm
※トップ材・バック材はブックマッチ（見開き）状態での寸法を記載しています。単板のサイズではありません。
※木材は上部が狭くなる場合があるため、幅を2つ記載している場合は、広い方が下部、狭い方が上部のサイズです。
■ 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
・希少な4A【中上】グレードのカーリー杢
・トップ・バック・サイド6枚セット（各パーツブックマッチ）
・ソプラノウクレレ製作向けに厳選
・ゴールド〜ブラウンの美しい天然色
・立体感のある美しいフィギャード杢
・ハワイ島直送・再植林プロジェクト材
■ 用途 / Recommended Uses
・ソプラノウクレレ製作
・カスタムウクレレ製作
・楽器製作
・高級木工・クラフト制作
美しいカーリー杢を持つ、高品質なハワイアンコア・ソプラノウクレレ用トップ・バック・サイド6枚セットです。
■ Product Description
Hawaiian Koa 4A Curly
Soprano Ukulele Top, Back & Side 6-Piece Set
Item Number: KOA-SP-TBS-070
This is a premium 4A (High-Mid Grade) Curly Hawaiian Koa set featuring the distinctive golden-to-brown tones and beautiful three-dimensional curly figure characteristic of Hawaiian Koa.
The strong curly figure comes to life as the viewing angle and light change, creating exceptional depth and visual movement across the surface of the wood.
The Top, Back, and Side pieces have been carefully matched for grain pattern and color balance, creating a complete 6-piece set for soprano ukulele construction.
The wood is sourced directly from suppliers on Hawaii Island and supplied as part of an ongoing reforestation project.
KOA
What Is Hawaiian Koa?
Why Is Everyone So Fascinated by Koa?
What Is Koa?
Hawaiian Koa (Acacia koa) is a remarkable wood that has been treasured by the people of Hawaii for centuries.
Traditionally used for outrigger canoes, paddles, boxes, and furniture, Koa is now highly valued worldwide as a premium tonewood for ukuleles and guitars.
It is known for its rich, warm tonal character and distinctive natural beauty.
The Rarity of Hawaiian Koa
Hawaiian Koa is a tree species native to Hawaii, with a naturally limited geographic range and a finite supply of harvestable timber.
Historical logging and changes in land use have affected Koa forests. High-quality lumber displaying exceptional curly figure is particularly rare and highly sought after.
Today, forest conservation and reforestation initiatives are helping support the future of this valuable Hawaiian resource.
Our Koa Grading System
Our grading system is based on decades of experience in the wood industry. We evaluate Hawaiian Koa primarily by the strength, depth, and visibility of its curly figure, providing a consistent reference to help customers compare and select lumber.
Little or no curl,
with subtle figuring
Moderate curl
visible at certain angles
Prominent curl
visible from most angles
Deep, strong,
highly defined curl
Exceptionally rare,
outstanding curly figure
Note: These grades are based on our own grading standards. As Koa is a natural material, color, grain patterns, and the appearance of curl may vary depending on the individual piece and lighting conditions.
Moisture Content & Drying
Some of our lumber comes from naturally fallen trees or logs that have been drying for extended periods after harvesting. Moisture content varies from piece to piece. Some lumber may be ready for processing, while other pieces may require additional drying or acclimatization.
Careful drying and gradual moisture adjustment help minimize the risk of checking, cracking, and warping.
Stack Properly
Use stickers between boards to allow air to circulate freely.
Ensure Ventilation
Avoid direct sunlight and sudden changes in temperature or humidity.
Circulate Air
Use fans when necessary to maintain gentle and consistent airflow.
Minimize Warping
Stack lumber carefully and use appropriate weights when needed.
Recommended Uses
With its beautiful grain and excellent versatility, Hawaiian Koa is suitable for a wide range of applications, from fine musical instruments to decorative woodworking and handcrafted accessories.
Ukulele & Guitar Making
Knife & Tool Handles
Pens, Small Crafts & Inlays
Boxes & Fine Woodworking
Dimensions & Tolerances
Because wood is a natural material, actual dimensions may vary slightly. The following measurement tolerances may apply depending on the product.
| Thickness | ±0.2 mm |
|---|---|
| Length | ±5 cm |
| Width | ±3 mm |
Natural lumber may not be perfectly square or uniformly shaped. Please allow for the natural characteristics of wood. Dimensions and conditions specified on individual product pages take precedence.
Detailed information
Tree species: ハワイアンコア
Usage: ウクレレ
Ukulele size: ソプラノ
Ukulele set: トップ、バック、サイド
Guitar size:
Guitar set:
Guitar grade:
Color:
Format:
Striped pattern:
Dimensions of top thickness:
Top width:
Top length:
Back thickness:
Back width:
Back length:
Side thickness:
Side width:
Site length:
