Lumber prices have plummeted 30% over the past two weeks as the housing market cools down.  A surge in mortgage rates contributed to a decline in pending home sales last month, according to the National Association of Realtors.  Lumber is still facing supply chain disruptions after storms knocked out crucial railways in British Columbia late last year.  Lumber prices have crashed 30% over the past two weeks as rising mortgage rates help cool down the US housing market.  Lumber traded limit down multiple times last week, and was down about 5% on Tuesday ...