Boise Cascade has slowed operations at its sawmill because of a pokey housing market and falling lumber prices. The effect is expected to be temporary, even though the mill closed for a week in October. About 100 workers are affected by the curtailment. Such actions are natural in the timber industry as the market fluctuates, according to Shawn Church of Random Lengths, a forest products industry news service. He says the industry is just now beginning to adjust to the slowing demand for housing.