It is well known that the forestry sector is sensitive to climate change but most studies have examined impacts only through 2100 and warming of less than 4°C. This is the first timber analysis to consider possible climate change impacts out to 2250 and warming up to 11°C above 1900 levels. The results suggest that large productivity gains through 2190 lead to a continued expansion of the global timber supply. However, as carbon fertilization effects diminish and continued warming causes forestland to continue to shrink, warming above 8°C is predicted to become harmful to the forest sector.