Peso madeira (ρ·V)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
This calculator determines the weight of a wood volume using the formula mass = density × volume (m = ρ·V), where density (ρ) depends on the wood species and moisture content, and volume (V) is calculated from dimensions. It's useful for construction projects, furniture manufacturing, or log transport, providing accurate weight estimates.
Wood density varies by species (e.g., pine, eucalyptus) and ranges from 0.5 g/cm³ (light woods) to 0.9 g/cm³ (heavy hardwoods). Volume is calculated as length × width × height (in cubic meters). Accuracy relies on precise measurements and species-specific density tables.
Moisture content significantly affects wood density: dry wood weighs less than green wood. Irregularities like knots may cause density variations. For best results, use standardized measurements and regional density charts.
Ideal for planning transportation costs, structural design, or compliance in architecture and civil engineering. Always cross-check with physical measurements for critical applications.
Frequently asked questions
What is wood density?
It's the mass per unit volume, usually in g/cm³. Varies by species, moisture, and tree growth conditions.
How do I find the density of my wood species?
Check tables from forestry labs or technical standards like NBR 14380 for average values.
Does moisture affect the calculation?
Yes. Wet wood has higher density. Use equilibrium moisture content values for accuracy.
How to measure an irregular log's volume?
Use Heidemann's formula: (average diameter)² × length × 0.7854. Precise tape measurements are key.