How much timber fits in a 20ft container depends on the timber species, dimensions, packing method and the weight limit for the shipment. For sawn timber, a practical load is often around 20 to 28 m³, but the actual quantity should be confirmed for the specific order.
Why There Is No Fixed CBM
A 20ft container has a fixed internal space, but timber cannot always be loaded to its theoretical maximum volume.
The limiting factor can be:
- Timber weight
- Board dimensions
- Packing method
- Available container space
- Road and container weight restrictions
- How the timber is bundled and loaded
Dense hardwoods such as Iroko, Tali, Azobé or Doussié can reach weight limits before the container is completely filled by volume.
Lighter species may allow a higher cubic-metre load.
How Much Sawn Timber Can You Load?
For planning purposes, buyers can use 20–28 m³ as a rough working range for a 20ft container of sawn timber.
It is not a guaranteed loading quantity.
The final volume should be calculated from the actual timber specification and loading plan.
For example, a buyer ordering 25 m³ of Sapele should not assume that the same 25 m³ will load in exactly the same way as 25 m³ of a much denser hardwood.
What Affects the Loadable Volume?
Timber species
Wood density has a direct effect on the maximum practical load.
A container filled with a dense tropical hardwood can reach its weight limit before all available space is used.
Board dimensions
Thickness, width and length affect how efficiently timber can be arranged inside the container.
Standardized dimensions are generally easier to stack than irregular pieces.
Packing method
Timber can be bundled and arranged to make better use of available space.
The supplier should determine the appropriate loading arrangement based on the actual order rather than simply multiplying a container’s internal dimensions.
Moisture content
Fresh or higher-moisture timber can weigh considerably more than properly dried timber.
This matters when calculating the total shipment weight, particularly for dense hardwoods.
Should You Order by CBM or by Container?
For export purchases, buyers should normally specify the required cubic volume and timber specifications, then ask the supplier to confirm how much can be loaded in the selected container.
For example:
Sapele sawn timber, 25 m³, required dimensions, specified grade, kiln-dried, FOB Douala.
The supplier can then confirm whether the requested quantity is suitable for a 20ft container and provide the corresponding quotation.
What About a 40ft Container?
A 40ft container provides more internal space, but that does not mean you can simply double the timber volume.
For dense hardwood, the weight limit can still determine the practical loading quantity.
This is why container size should be selected according to the species, timber dimensions and total shipment weight, not volume alone.
How to Plan a Cameroon Timber Shipment
If you are buying timber from Cameroon, give the exporter the information needed to calculate the shipment properly:
- Species
- Sawn timber or logs
- Thickness
- Width
- Length
- Grade
- KD, AD or fresh
- Required volume
- Destination port
- 20ft or 40ft container preference
The exporter can then confirm the practical loading quantity and quotation.
Buying Timber From Cameroon
Jam Wood Export supplies African timber from Cameroon for international buyers and handles export shipments from Douala.
If you are planning a container purchase, provide the required species, dimensions, grade, moisture condition, quantity and destination when requesting a quotation. This allows the shipment to be priced and planned around the actual timber rather than an assumed container capacity.