Data are collected by Forest Research in an annual Sawmill Survey. The following section includes summary results, covering number of mills, consumption and production are available for all mills.
In addition, there are also more detailed figures for larger mills only. The threshold defining larger mills was changed for the collection of 2016 data, from annual sawnwood production of 10 thousand m3to annual sawnwood production of 25 thousand m3. Further information on this change is provided in the section on Larger Mills within this chapter and in the Sawmill Survey section of the Sources chapter.
Consumption units are given in green tonnes. For production, the units used are m3sawnwood. For conversion factors between different units, see the Timber section of the Sources chapter.