Plywood core species & blend density
Compare Vinawood planning densities for single-species cores, then mix species by share (%) or any relative weights (e.g. 30 + 70 gives the same blend as 3 + 7). The result is a volume-weighted average density — useful for logistics estimates before you have a mill COA. Use packing or CBM with Custom density and paste the blended value.
Core species reference
Planning defaults (kg/m³) for export-style hardwood and softwood cores. Confirm every order against supplier certificates.
Styrax
500 kg/m³Full White Core. Substitute for Birch.
Typical use: High-end Furniture
Acacia
580 kg/m³Standard Hardwood.
Typical use: General Purpose
Eucalyptus
650 kg/m³Heavy Duty.
Typical use: Construction & Industrial
Pine
520 kg/m³Softwood core / sheathing grades.
Typical use: Packaging, Sheathing, Budget Lines
Rubberwood
680 kg/m³Hevea plantation hardwood; furniture and joinery cores.
Typical use: Furniture, Cabinetry, Interior Industrial
Blend density calculator
Enter two or more species with positive shares. Shares do not need to sum to 100 — only the ratio matters. Use "Normalize to 100%" to rewrite rows as percentages for documentation.
| Species | Share | ρ (kg/m³) | |
|---|---|---|---|
| 580 | |||
| 650 |
Blended planning density
615.0 kg/m³
Mix total (sum of shares): 100.0000
- Acacia50.0% of mix → contributes 580 kg/m³
- Eucalyptus50.0% of mix → contributes 650 kg/m³
Preset mixes (e.g. Styrax + Acacia) in other calculators use factory-style averages. This tool is for arbitrary percentages. Structural and glue-line performance still depend on the full panel construction — density alone does not certify a grade.
お客様の声
“Good teaching tool”
We use it in training for junior buyers learning how core mix affects kg per CBM.