HempWood

HempWood is a solid engineered building material made by compressing [[hemp-bast-fiber|hemp bast fiber]] with a soy-based binder under heat and pressure. The result is a dense, hard, wood-like substrate that performs comparably to or better than conventional hardwoods in most flooring, furniture, and millwork applications — but that grows in a single 90–120 day season rather than the 60–100 years required for the hardwood trees it replaces.

What it is

The principal product, HempWood, is manufactured by Fibonacci LLC in Murray, Kentucky. The company was founded in 2018 by Greg Wilson, drawing on his prior experience in bamboo flooring (substantial parts of the manufacturing process derive from bamboo-densification technology) and on the post-2018-Farm-Bill availability of domestic [[hemp-bast-fiber|hemp fiber]].

Material specifications:

• Density. Substantially higher than most hardwoods. HempWood blocks are produced at approximately 1,300 kg/m³ — comparable to the densest natural woods.
• Janka hardness. Typically rated 2,500+ on the Janka hardness scale, exceeding oak (~1,300), maple (~1,450), and [[hickory|hickory]] (~1,820). Comparable to or harder than ipe and other tropical hardwoods.
• Dimensional stability. Engineered material has more consistent dimensional behavior than natural wood; less susceptible to warping, cupping, and grain-direction stress.
• Appearance. Available in various stains and finishes; the natural color is light tan with visible fiber pattern (substantially different from conventional wood grain but distinctive and accepted in design contexts).

How it’s made

The production process:

1. Fiber preparation. Decorticated [[hemp-bast-fiber|hemp bast fiber]] is cleaned, dried, and sized.
2. Binder mixing. Fibers are mixed with a soy-based protein binder (substantially less toxic than the urea-formaldehyde binders typical of conventional engineered woods).
3. Layup. The binder-coated fibers are arranged in molds, with grain orientation controlled to produce desired strength characteristics.
4. Compression. Heat (typically 150°C+) and substantial pressure (multi-ton per square inch) for several hours densify the material and cure the binder.
5. Curing and finishing. Final cure, dimensional milling, and surface finishing produce the saleable product.

Applications

A non-exhaustive map:

• Flooring. The principal volume application; HempWood flooring competes directly with conventional hardwood flooring at premium-to-comparable price points.
• Furniture and cabinetry. Tabletops, cabinet faces, drawer fronts, and structural furniture components.
• Architectural millwork. Trim, molding, baseboards, decorative panels.
• Musical instruments. Selected uses in instrument bodies, fingerboards, and other components — the dense, dimensionally stable material has acoustic properties of interest.
• Stair treads and high-wear surfaces. The substantial hardness recommends HempWood for applications where conventional softer woods would wear quickly.

What this trades

HempWood is not strictly better than conventional hardwood — it has trade-offs:

• Cost. Currently substantially more expensive than standard oak or maple flooring. The cost is largely a function of low production volume; scale-up is expected to substantially close the gap.
• Aesthetics. The visual character is different from conventional wood. Some applications and designers prefer it; some do not. [[the-market|The market]] is partly an aesthetic-preference question.
• Limited supply. Fibonacci is the principal U.S. producer; production capacity is finite. Specifying HempWood for large projects requires substantial lead time.
• Newer material. Decades-long performance data does not yet exist; conventional hardwood has centuries of in-service track record. Conservative specifiers may prefer the proven substrate.

What this gives the platform

HempWood demonstrates that hemp building materials extend beyond the hempcrete-and-insulation envelope into the structural and finish substrates that conventional homes are made of. A hemp home in the most ambitious sense — hempcrete walls, hemp-fiber insulation, HempWood floors and millwork, hemp textiles in furnishings — is substantially possible with materials available today. [[0mn1one|The platform]]‘s hemp-homes work has reason to engage HempWood directly as part of the integrated hemp-home picture.

See also

Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.

• Subset of: [[hemp-bast-fiber]]
• Member of: [[ingredient]]

Sources

1. Fibonacci LLC / HempWood. https://www.hempwood.com. Source class: manufacturer / technical specifications.
2. HempWood — A Sustainable Hardwood Alternative. Various trade publications and case studies. Source class: industry / case-study documentation.
3. [[us-hemp-building-association|U.S. Hemp Building Association]] — HempWood technical bulletins. Source class: institutional / continuing trade body.

Lenses still to grow

• Greg Wilson and Fibonacci LLC as person/business entries.
• Comparative life-cycle analysis vs. hardwood, bamboo, engineered wood.
• Acoustic and instrument applications as specialty market.
• The bamboo-densification precedent as technical-historical context.