Highland Hardwoods - Not sure which types of wood are hard, soft, or stable enough for your project? Use the hardness and stability chart on our website to find the wood species
Amazon.com: Balsa Wood Sticks 1/4 Inch Square Dowels Strips 12" Long - Pack of 30 by Craftiff
Top Ten Softest Woods | The Wood Database
The Curious case of Hard Wood and Soft Wood | JACPL
Absolute Flooring LLC - DID YOU KNOW: The Janka Hardness Test was developed in the early 20th Century to measure the hardness of a given wood species? The softest woods used for