Spalted Figure Hawaiian Koa 2A Curly Concert Ukulele Top, Back & Side 6-Piece Set #KOA-CT-TBS-099
■ Product Description
Hawaiian Koa 2A Curly
Concert Ukulele Top, Back & Side 6-Piece Set
Item Number: KOA-CT-TBS-099
■ Spalted Figure
This set features distinctive Spalted Figure, giving the Hawaiian Koa a unique appearance unlike conventional Koa.
Naturally formed spalting lines and variations in color combine with Hawaiian Koa’s characteristic golden-to-brown tones, creating a truly one-of-a-kind visual character.
The combination of Curly figure and natural spalting makes this material an excellent choice for a distinctive custom ukulele with a unique appearance.
This is a 2A (Lower-Mid Grade) Curly Hawaiian Koa set featuring the distinctive golden-to-brown natural coloration and subtle curly figure characteristic of Hawaiian Koa.
The natural figure gives the wood an attractive and individual appearance, with subtle variations in depth and movement depending on the viewing angle and light.
The Top, Back, and Side pieces are combined into a complete 6-piece set for concert ukulele construction.
The wood is sourced directly from suppliers on Hawaii Island and supplied as part of an ongoing reforestation project.
■ Grade
2A (Lower-Mid Grade) Curly
■ Scientific Name
Acacia koa
■ Set Contents
2 Top pieces + 2 Back pieces + 2 Side pieces
Total: 6-piece set (2 bookmatched pieces for each component)
■ Size
Bookmatched Top
Approx. 315 × 260 × 2.9 mm
Bookmatched Back
Approx. 318 × 240–250 × 3.0 mm
Side
Approx. 450 × 80–85 × 2.5 mm
(Length × Width × Thickness)
The dimensions for the Top and Back are measured with the bookmatched pieces opened and laid flat. These are not the dimensions of a single piece.
■ Wood Information
Species: Hawaiian Koa
Scientific Name: Acacia koa
Origin: Hawaii Island, State of Hawaii, USA
■ Features
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2A (Lower-Mid Grade) Curly Hawaiian Koa
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Complete 6-piece Top, Back & Side set
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2 bookmatched pieces for each component
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Suitable for concert ukulele construction
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Beautiful natural golden-to-brown coloration
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Subtle, naturally figured curly grain
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Excellent choice for custom ukulele projects
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Directly sourced from Hawaii Island
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Supplied as part of a reforestation project
■ Recommended Uses
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Concert ukulele construction
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Custom ukulele building
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Acoustic instrument making
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Woodworking and craft projects
A 2A Curly Hawaiian Koa Concert Ukulele Top, Back & Side 6-piece set offering the beautiful natural coloration and subtle curly figure characteristic of genuine Hawaii Island Koa.
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
Thickness:
Length:
Width:
Backing:
Number of leaves:
Made to order: KOA-CT-TBS-099
