We manufacture Hawaiian Koa guitar sets for all guitar sizes. Winkler Woods supplies figured, curly and high grade Hawaiian Koa, Hawaiian Mango, Hawaiian Milo, Hawaiian Kamani, Hawaiian Monkey Pod, Hawaiian Cuban Mahogany, and sometimes various fruit and nut trees which make great tonewoods

We also specialize in Japanese exotic tonewoods such as Tochi (Horse Chestnut), Sakura (Cherry), Kurumi (Walnut), Kuri (Chestnut), Kaki (Persimmon), Shiro Kaki (Black and White Persimmon), and occasionally Black and White Ebony Wood

We also stock Indian Rosewood, and Spruce and Cedar Top material.

inquire or request a custom order. See Grades of Koa to learn more about our tonewood grading system.

Winkler Woods is capable to supply Hawaiian Koa acoustic guitar sets as wholesale for business-to-business and retail for luthiers. Our sourcing of high grade and curly Hawaiian Koa came from the Big Island of Hawaii. We harvest and salvage Hawaiian Koa trees that were damaged by natural environmental factors, most of the time we can find them in the summits of Mauna Loa, then process the woods as logs to be turned into lumber, tonewood, and veneer. We do all the processing from green to final product in our workshop on Oahu, Hawaii. Since newly harvested Hawaiian Koa still has a high amount of moisture content within, we will then prepare the Koa wood for treatment and drying process. The time duration of drying and finishing "green" Koa can take up to six to eight months depending on the condition of the wood.

Our Hawaiian Koa tonewood for acoustic guitar sets in different sizes such as orchestra model and jumbo are cut quarter sawn and we measure their qualities by curl, size, figure, stripness and color. Koa wood is graded by strength and depth of curl or evidence of figure and character, this is our way to determine the grade level of a Koa tonewood piece. Master Grade 5A being the highest because of the tonewood's strong and deep curl within the template. A Koa tonewood with stronger and deeper curl is more expensive because it produce better sounds.

➤ Super Curl (Master Grade 5A) - Excellent, strong, deep curl no less than 90% and no blemishes within the template.
➤ Heavy Curl - strong curl and figure, usually throughout the entire plate, generally visible from all angles.
➤ Medium Curl - pervasive curl yet may disappear or look stronger at certain angles or have bald spots.