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.
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-CT-TBS-099