200-day SMA Fails to Support Ailing Lumber Prices RANDOM LENGTH LUMBER FUTURES (CONTINUOUS: CURRENT CONTRACT IN FRONT) CME:LBS1! Thomaswestw Lumber prices are looking lower after slicing through the 200-day Simple Moving Average ( SMA ). Former areas of resistance turned support may offer relief but bears appear to be in full control. A drop to the 600 level may be on the cards.