North American lumber prices are spiraling as red-hot house prices and the rising cost of mortgages is hitting affordability.  Nearly 80% of National Housing Survey respondents reported now is the worst time to buy a home.  It's set to worsen as Americans foresee their financial situations deteriorating over the next year.  Lumber prices have been on a steep decline as a combination of rising interest rates, record-high inflation and a red-hot housing market translate into fewer people being able to afford to buy their own home.  Prices are ...