Prices of products manufactured in Canada, as measured by the Industrial Product Price Index (IPPI), increased 0.8% month over month in September and gained 5.5% year over year. Meanwhile, prices of raw materials purchased by manufacturers operating in Canada, as measured by the Raw Materials Price Index (RMPI), increased 1.7% month over month and rose 8.4% year over year. …Prices for lumber and other wood products declined 4.4% in September, after two straight monthly increases. The decrease was caused by falling softwood lumber prices (-10.7%), the largest decrease since June 2022. In August 2025, the United States announced a significant increase to the duties it levies on Canadian softwood lumber.