Timber Weight Calculator
Enter length in metres and width and thickness in millimetres. Choose softwood or hardwood to estimate dry timber weight.
Dry timber estimate only. Moisture adjustment is excluded; density varies by species, moisture, and grade.
A QUICK WALKTHROUGH
How to use this tool
- Enter the timber length, width, and thickness.
- Choose softwood or hardwood.
- Calculate volume, total weight, and kilograms per metre.
Dry-timber estimate
Softwood uses 500 kg/m³ and hardwood uses 750 kg/m³ as typical class-average densities. Density varies by species, moisture, and grade.
Nominal sizes
Nominal planed dimensions can overstate the finished size. Measure the actual timber when accuracy matters.
Moisture adjustment
This calculator excludes moisture adjustment. Use the separate Moisture Adjustment tool when moisture content is relevant.
GOOD TO KNOW
Common questions
What density does it use?
Softwood uses 500 kg/m³ and hardwood uses 750 kg/m³. These are dry class-average estimates, not species-specific values.
Does it include moisture?
No. Use the separate Moisture Adjustment tool for moisture-related changes.
Is the result exact?
No. Timber density varies by species, moisture, and grade, and nominal planed sizes may be larger than the actual finished dimensions.