

Lumber & Plywood
Washington Supply Company is a proud member of the Lumbermans Merchandising Corporation
LMC is the largest cooperative of Lumber Dealers in the United States, accounting for more that $4 billion in sales at the retail level. We are one of 375 members of this organization, and it is how we can bring prices to our customers which are the most competitive possible for all of your building materials needs.
Framing Lumber | Plywood | Pressure Treated | SidingFraming Lumber
Douglas Fir or "Doug Fir" is the preferred framing lumber in northwest Connecticut because of its strength, dimensional stability and its cutting and nailing properties. We strive to stock high quality lumber and to do this, we communicate our needs to our suppliers and maintain a strong relationship with them. Our main suppliers are Weyerhaeuser and Sherwood Lumber.
For more information about the properties and harvesting of this great wood, check out the Western Wood Products Association page on Douglas Fir.
We stock the following dimensions:
Size Lengths in Feet Pre-cut Studs in Inches 2 x 4 8 10 12 14 16 20 92 5/8 - or - 104 5/8 2 x 6 8 10 12 14 16 20 92 5/8 - or - 104 5/8 2 x 8 10 12 14 16 18 20 24 2 x 10 10 12 14 16 18 20 24 2 x 12 12 14 16 20 24 Plywood
Our construction plywood is made from Douglas Fir veneers. Our customers prefer Doug Fir because of its strength, stability and weather resistance. We stock CDX sheathing and underlayment grades.
For cabinet or finished plywoods, we stock a wide variety of softwoods, sanded one or two sides; pine veneers; and hardwood veneers in lauan (mahogany) and birch.
For more information on plywoods, visit the web sites of the American Plywood Association and the Canadian Plywood Association.
Pressure Treated Lumber
Micropro Pressure Treated lumber has become the standard for use where rot and insect resistance is required. Our treated decking is Premium Grade. Our 2 x 4 through 2 x 12 is all #1 grade and our timbers are #2 grade. We stock the following dimensions:
Size Lengths in Feet 5/4 x 6 8 10 12 14 16 2 x 4 8 10 12 16 2 x 6 8 10 12 14 16 20 2 x 8 8 10 12 14 16 20 2 x 10 12 14 16 20 2 x 12 12 16 20 4 x 4 8 10 12 4 x 6 12 16 6 x 6 8 12 16 We have a reputation for stocking the best PT Lumber in the area. To maintain this, our primary supplier is Culpeper Wood Preservers . We are pleased with this relationship not only because of the quality of lumber that Potomac supplies, but also because of their environmental awareness in their treating operations.
Quality Siding
Our cedar bevel siding, known in New England as "clapboard" is all clear vertical grain "CVG." Vertical grain is superior to flat grain in that it is less likely to split, curl or warp and it holds paint better. We stock CVG clapboards in ½ x 6, ½ x 8 and ¾ x 10. We also stock pre-primed CVG clapboards in ½ x 6. For tips on installing cedar siding, see the Western Red Cedar Lumber Association web site.
Tongue & Groove
We stock a knotty grade of cedar tongue & groove siding in the Western Wood Products Association’s V4E pattern.
Cedar Boards
We stock 1 x 8 and 1 x 12 cedar boards in "D and Better Clear" grade. This material is surfaced one side and two edges "S1S2E" leaving one side "rough sawn." We also stock surfaced four sides "S4S" 4 x 4’s.
Pine Siding
We stock Premium Eastern White Pine siding, rough sawn "S1S2E" in 1 x 12 and rough sawn shiplap pattern in 1 x 8 and 1 x 12. When stained, this material makes an excellent and economical vertical siding for barns and other outbuildings. Visit the Northeast Lumber Manufacturers' Association for more information on Eastern White Pine.
Versatex Cellular PVC Trim
Washington Supply stocks the best in cellular PVC trim products from Versatex. We have stock in 1" X 4", 1" X 6", 1" X 8", 1" X 10" and 1" X 12". We also have 5/4" stock in the same widths. All pieces are 18'. There is also beadboard, moulding, soffit and molding patterns available. Please see the folks in our sales department for more information and to customize your latest project!Any questions? Email Jim Bate, our Lumber and Building Materials Manager, or call 860-868-7395.
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