Hawaiian Koa 5A Curly Lumber #KOA-987
■ Product Description
Hawaiian Koa 5A Curly
Solid Wood Lumber
Item Number: KOA-987
This is a piece of premium 5A (High Grade) Curly Hawaiian Koa (Acacia koa) solid wood lumber from Hawaii Island.
The wood features the distinctive golden-to-brown natural coloration of Hawaiian Koa, combined with strong, three-dimensional curly figure that changes in depth and appearance depending on the viewing angle and light.
Measuring approximately 1,290 mm long, 74 mm wide, and 74 mm thick, this piece is particularly notable for its generous length and substantial thickness.
The long-format dimensions provide flexibility for custom cutting and processing, making it suitable for musical instrument components, fine woodworking, decorative pieces, and specialty applications requiring longer sections of Hawaiian Koa.
The wood is sourced directly from suppliers on Hawaii Island and supplied as part of an ongoing reforestation project.
■ Grade
5A (High Grade) Curly
■ Scientific Name
Acacia koa
■ Size
Approx. 1,290 × 74 × 74 mm
(Length × Width × Thickness)
■ Moisture Content
Approx. 18%
■ Wood Information
Species: Hawaiian Koa
Scientific Name: Acacia koa
Origin: Hawaii Island, State of Hawaii, USA
■ Features
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Premium 5A (High Grade) Curly Hawaiian Koa
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Long-format solid wood lumber measuring approximately 1,290 mm
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Substantial thickness of approximately 74 mm
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Beautiful natural golden-to-brown coloration
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Strong, three-dimensional curly figure
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Suitable for custom cutting and processing
-
Useful for projects requiring longer sections of solid Hawaiian Koa
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Moisture content: Approx. 18%
-
Directly sourced from Hawaii Island
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Supplied as part of a reforestation project
■ Recommended Uses
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Musical instrument making
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Musical instrument components
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Fine woodworking
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Decorative wooden components
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Custom woodturning projects
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Specialty craft projects
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Custom parts requiring longer lumber sections
A premium piece of 5A Curly Hawaiian Koa solid wood lumber, featuring strong natural curly figure, an impressive 1,290 mm length, and substantial thickness for high-grade instrument components, fine woodworking, and custom projects.
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: 74
Length:
Width:
Backing:
Number of leaves:
Made to order: KOA-987
