HAWAIIAN

KOA

Why Is Everyone So Fascinated by Koa?

01

What Is Koa?

Discover Hawaiian 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.

02

The Rarity of Hawaiian Koa

Rarity

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.

03

Our Koa Grading System

Grading

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.

1A / 2A Basic to Light Figure

Little or no curl,
with subtle figuring

3A Medium Figure

Moderate curl
visible at certain angles

4A Strong Figure

Prominent curl
visible from most angles

5A Premium Figure

Deep, strong,
highly defined curl

5A+ Master Grade

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.

04

Moisture Content & Drying

Moisture & 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.

01

Stack Properly

Use stickers between boards to allow air to circulate freely.

02

Ensure Ventilation

Avoid direct sunlight and sudden changes in temperature or humidity.

03

Circulate Air

Use fans when necessary to maintain gentle and consistent airflow.

04

Minimize Warping

Stack lumber carefully and use appropriate weights when needed.

Drying time depends on wood thickness, initial moisture content, temperature, humidity, and airflow. Always check moisture content before machining and allow lumber to acclimate to its intended environment.
05

Recommended Uses

Applications

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.

I

Ukulele & Guitar Making

II

Knife & Tool Handles

III

Pens, Small Crafts & Inlays

IV

Boxes & Fine Woodworking

06

Dimensions & Tolerances

Measurement Note

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.

MAIKAI WOOD HAWAII
One-of-a-kind woods, grown on the Island of Hawaii

Hawaiian Koa
MaiKai Wood Hawaii


We specialize in supplying rare Hawaiian woods—such as Hawaiian Koa and Mango—carefully selected for musical instruments and fine craftsmanship, and delivered to makers worldwide.