B B & S Treated Lumber 
BWI-Masonite 
Cleary Millwork 
Coastal Forest Products 
Fairway Wholesale Distribution LLC 
Flagship Forest Products 
Holbrook Lumber Co. 
Holden Humphrey 
Huber Engineered Woods 
Keiver-Willard Lumber Corp. 
Parksite 
Portland Stone Ware Co. 
Rafferty Wholesale 
Rhode Island Builders Assoc. 
The Trex Company 
Timber Trading Group 
United States Gypsum Co. 
US Lumber