Wood can be measures in different ways. Here are the most common measurements:
Solid cubic metre
A solid cubic metre corresponds with one cubic metre from 1 metre long logs of wood. These are placed on top of each other without gaps in 1 m width and 1 m height. A solid wood cube results.
Stacked cubic metre
A stacked cubic metre also corresponds with one cubic metre. However, the wood logs are stacked. There are gaps between the logs.
One stacked cubic metre corresponds to 0.7 solid cubic metres.
Lose cubic metre
One lose cubic metre also corresponds with one cubic metre. However, the wood logs are losely dumped, thus creating many gaps. Therefore, there is a lot of useless air inbetween the wooden logs.
A lose cubic metre corresponds to only 0.4 to 0.5 solid cubic metres.