Timber shortage is kind of the wrong way to put it. We have a lack of redundancy in sawmills. We actually have a lot of timber - just not enough sawmills to process the timber and turn it into wood products that people can use in construction. Just like the CPU shortage - no one wants to build new fabs/sawmills because everyone assumes demand is just high for now and won't stay high forever... So, for now, they all get to raise their prices and rain in the profit.