Working with Kanda Rose in Wood and Epoxy Builds
Kanda rose encompasses several African hardwood species within the genus Beilschmiedia, including Beilschmiedia gabonensis, Beilschmiedia grandifolia, Beilschmiedia hutchinsonia, Beilschmiedia mannii, Beilschmiedia obscura, and related species. Documented in the CIRAD Tropix technical sheet, this dense timber provides straight grain and rich coloration that make it an appealing option for high-end furniture and custom river tabletops. Here is what builders and buyers need to know when pairing Kanda rose with casting resin.
| Property | CIRAD Tropix value | What it means / US units |
|---|---|---|
| Botanical name(s) | Beilschmiedia gabonensis, Beilschmiedia grandifolia, Beilschmiedia hutchinsonia, Beilschmiedia mannii, Beilschmiedia obscura, Beilschmiedia p.p. | |
| Colour / texture / grain | Brown; texture medium; grain straight; interlocked grain absent | |
| Specific gravity (12% MC) | 0.71 | about 44.3 lb/ft³; a 2-inch-thick slab weighs about 7.4 lb per sq ft |
| Monnin hardness (12% MC) | 3.7 | French hardness scale; higher = harder (not a Janka value) |
| Total tangential shrinkage | 8.0 % | green to oven-dry |
| Total radial shrinkage | 4.0 % | green to oven-dry |
| Ratio St/Sr | 2.0 | closer to 1 = less cupping tendency |
| Coefficient of volumetric shrinkage | 0.43 % per % MC | volume change per 1% change in moisture content |
| Fibre saturation point | 29 % | |
| Thermal conductivity | 0.24 W/(m·K) | |
| Crushing strength (12% MC) | 55 MPa | about 7,980 psi |
| Static bending strength (12% MC) | 105 MPa | about 15,230 psi |
| Modulus of elasticity (12% MC) | 16,060 MPa | about 2,329,000 psi |
| Decay (fungi) resistance | Durability class 2 – durable | |
| Termite resistance | Class D – durable | |
| Dry-wood borer resistance | Class D – durable (sapwood demarcated, risk limited | |
| Heartwood treatability | Class 3 – poorly permeable | |
| Use class from natural durability | Class 4 – in ground or fresh water contact | |
| Drying | rate slow; distortion: slight risk; checking: high risk; collapse: no known specific risk; casehardening: yes | |
| Suggested kiln program temperatures | 53–65 °C | about 127–149 °F |
| Machining | blunting high; saw teeth: stellite-tipped; cutting tools: tungsten carbide | |
| Nailing and screwing | Good | |
| CITES status | This species is not listed in the CITES Appendices (Washington Convention 2025). |
Values from the CIRAD Tropix technical sheet (average values for mature wood, 12% moisture content where noted). US-unit conversions are calculated by BigEpoxy (1 MPa = 145.04 psi; density = specific gravity × 62.43 lb/ft³).
What does Kanda rose look like, and what slab widths are available?
Kanda rose heartwood has an overall brown reference color that ranges from greenish brown to olive brown, and even dark reddish brown depending on the botanical species. The sapwood is clearly demarcated from the heartwood and measures from 2 to 5 cm in thickness. The wood has a medium texture, a straight grain, and interlocked grain is listed as absent. Harvested log diameters typically measure from 60 to 90 cm, offering good slab width potential for live-edge dining tables and boardroom tops.
How heavy and hard is Kanda rose for a tabletop surface?
Kanda rose is a heavy hardwood with an average specific gravity of 0.71 at 12% moisture content. According to the CIRAD Tropix technical sheet, this yields a density of about 44.3 lb/ft³, which means a 2-inch-thick slab weighs approximately 7.4 lb per sq ft. Its hardness measures 3.7 on the Monnin hardness scale. The Monnin scale is a French indentation system where higher numbers indicate harder wood; it should never be converted to or confused with a Janka rating. At 3.7, the surface provides reliable resistance against everyday wear in table and flooring applications.
How stable is Kanda rose next to an epoxy river?
Wood movement is a critical factor when bonding live-edge boards to rigid epoxy. Kanda rose has a total tangential shrinkage of 8.0 % and a total radial shrinkage of 4.0 %, producing a tangential-to-radial shrinkage ratio of 2.0. Its coefficient of volumetric shrinkage is 0.43 % per % change in moisture content, and its fibre saturation point is 29 %. A ratio of 2.0 represents moderate differential movement across grain planes, meaning moisture acclimation is essential prior to pouring epoxy to prevent lateral strain along the resin bondline.
What drying risks should woodworkers anticipate?
Drying Kanda rose requires careful process control because the timber exhibits a slow drying rate. The CIRAD Tropix data lists a high risk of checking and confirms a risk of casehardening, while distortion presents only a slight risk and collapse has no known specific risk. The technical sheet recommends a period of air drying prior to kiln drying to relieve early stresses. Suggested kiln programs run at temperatures between 53 and 65 °C (about 127 to 149 °F).
How does Kanda rose machine, and what tooling is required?
The timber exerts a high blunting effect on cutting edges. Because of this abrasive wear, CIRAD Tropix recommends stellite-tipped saw teeth and tungsten carbide cutting tools for all milling operations. Because interlocked grain is absent and the grain runs straight, woodworkers can achieve clean surfaces without severe tearout, provided the carbide tooling remains sharp during flattening and jointing.
How does Kanda rose perform with fasteners and assembly?
For joinery and mechanical fasteners, Kanda rose receives a good rating for nailing and screwing, giving table bases and mounting brackets solid holding power. The heartwood treatability is classified as Class 3 (poorly permeable). While traditional furniture end-uses include cabinetwork, glued laminated components, and flooring, builders pouring epoxy channels should follow the resin manufacturer’s data sheet for sealing and mechanical keying along the live edge.
What is the durability and CITES status of Kanda rose?
The natural durability of Kanda rose heartwood is exceptional. It is rated Durability class 2 (durable) against wood-decay fungi, Class D (durable) against termites, and Class D (durable) against dry-wood borers, with borer risk limited strictly to the sapwood. Its inherent resistance qualifies it for Use Class 4 service (ground or fresh water contact). For international sourcing, the species is not listed in the CITES Appendices under the Washington Convention 2025.
Sources
Published October 31, 2026. Sources are linked in the text.
Header image: original graphic by BigEpoxy.com.
Staff note: Beyond its dimensional metrics, Kanda rose demonstrates high mechanical stiffness and strength, with CIRAD Tropix reporting a static bending strength of 105 MPa and a modulus of elasticity of 16,060 MPa at 12% moisture content. (Source: CIRAD Tropix 7 technical sheet: Kanda rose.)