West Fraser Timber posted profits of just C$6.1m, down from C$42.9m a year ago, mainly due to the C$37.6m cost of closing a pulp machine and wood room at its Hinton operations.
The company said it could have shipped more lumber but for a shortage of railway cars.
Plum Creek Timber Company saw its profits fall to US$94m from US$122m a year earlier, while sales rose marginally to US$414m.
However, the company said the result from most of its businesses exceeded expectations.
Rayonier’s net profits fell to US$23.3m from US$34.4m in 2005 but sales grew to US$277m from US$200m.
Tembec posted a net loss of C$168.2m, compared to a loss of C$26.2m a year ago. Its results include an after-tax loss of C$111.3m related to the impairment of assets at the Smooth Rock Falls pulp mill in Ontario.
The company’s forest products division saw its net profits rise to C$13.7m from C$10.2m. Sales also grew C$12.5m.