The classic model-making boxwood. Pale creamy-yellow with a glass-smooth surface and exceptionally fine, even grain. Takes the finest detail of any species we stock.
Castello Boxwood (Calycophyllum multiflorum) is the modern standard for high-end model ship planking, replacing the now-scarce European boxwood. Its pale cream colour and near-invisible grain give a smooth, uniform run where no single piece stands out from the next.
Boxwood is exceptionally dense and stable, so pieces hold their dimensions precisely and bend cleanly around the hull without crushing or splitting at tight curves. The fine grain means edges stay sharp and glue joints sit tight.
Each piece is milled fresh from the same stock and held to ±0.10 mm, so a full run keeps a consistent line.
| Species | Calycophyllum multiflorum |
| Origin | South America (Argentina / Paraguay) |
| Janka Hardness | ~2,100 N (hard) |
| Density | ~830 kg/m³ (air dried) |
| Grain | Extremely fine, straight, often invisible |
| Colour | Pale creamy-yellow, very uniform |
| Texture | Glass-smooth — best finish of all our species |
| Workability | Excellent — bends and glues cleanly |
| Moisture content | Below 8% (kiln dried) |
| Tolerance | ±0.10 mm (sheets/strips) / ±0.20 mm (square strips) |