Stable commodity prices in several categories were suspect while panel markets continued to flip; with plywood taking a backseat to burgeoning OSB. In the week ending September 18, 2026, the price of benchmark softwood lumber item Western Spruce-Pine-Fir 2×4 #2&Btr KD (RL) was US$472 mfbm. This was down -$8, or -2%, from the previous week when it was $480, said weekly forest products industry price guide newsletter Madison’s Lumber Reporter. Tha…