The mean annual rainfall is mainly from 900 mm to 1300 mm, with a distinct winter maximum. Outlying forests, away from the main karri belt, occur between Karridale and Forest Grove, and other smaller ones are at Mount Many Peaks, Torbay, Rocky Gully and the Porongorup Range. Heartwood pale pink to reddish brown, although regrowth is a lighter colour. Sapwood whitest and usually easy to distinguish. Planer angle may need to be reduced to 15 o . 6.
Larger lengths are available than from any other Western Australian hardwoods.
One of the major timber species of Western Australia and available both locally and interstate.