How many pieces of timber are in one cubic meter
To find out how many pieces of timber are in one cubic meter, calculate the volume of one piece and divide 1 m³ by that volume. This is useful when buying sawn timber, checking a batch volume or estimating weight.
All dimensions in the formula must be in meters. If the size is given in millimeters, convert it first: 100 mm = 0.1 m, 150 mm = 0.15 m, 6000 mm = 6 m.
Formula for calculating timber pieces in 1 m³
The number of pieces is calculated by the formula:
| Formula | Meaning |
|---|---|
| N = 1 / (B × H × L) | N is the number of pieces in 1 m³, B is width, H is height, L is length in meters |
For example, for timber 200×300×2000 mm, the dimensions in meters are 0.2×0.3×2. Calculation: 1 / (0.2 × 0.3 × 2) = 8.33. So 1 m³ contains 8 full pieces of this size, with the remaining volume being incomplete.
Table of timber pieces in one cubic meter
The table gives reference values for common sizes. For purchasing, whole pieces are usually counted, while the fractional value shows the actual volume ratio.
| Timber size, mm | Volume of one piece, m³ | Pieces in 1 m³ |
|---|---|---|
| 100×100×6000 | 0.060 | 16.7 |
| 150×100×6000 | 0.090 | 11.1 |
| 150×150×6000 | 0.135 | 7.4 |
| 200×100×6000 | 0.120 | 8.3 |
| 200×150×6000 | 0.180 | 5.6 |
| 200×200×6000 | 0.240 | 4.2 |
How to use the result
To calculate the volume of a batch, multiply the volume of one piece by the number of pieces. To estimate the weight of one timber beam, multiply its volume by the density of the relevant wood species and moisture content.
The actual size of sawn timber can differ from the nominal size after sawing, drying and planing. For accurate ordering, clarify whether the supplier calculates volume by nominal or actual dimensions.
Frequently Asked Questions
How do you calculate the number of timber pieces in 1 m³?
Convert width, height and length to meters, then divide 1 m³ by the volume of one piece: N = 1 / (B × H × L).
Why is the number of timber pieces per cubic meter fractional?
The fractional value is the calculated quantity by volume. In purchasing, full pieces are usually counted, while the remaining volume is handled separately or rounded according to the supplier's rules.
Should extra timber be allowed when buying?
Yes, real projects usually need an allowance for cutting, sorting, possible defects and timber moisture. The amount of reserve depends on the project and material quality.