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SupaTimber® Fact Sheet
 SupaTimber® pressure-treated wood is protected from rot, decay and termite attack with Chromated Copper Arsenate (CCA) wood preservative. CCA Label PDF(KB) Generally, the label authorizes use of CCA in most industrial and commercial applications. Most of those applications are heavy retention treatments of 0.50 or more pounds per cubic foot. The only standards under which lower retention treatments may be used are C9, C25, C28, C33 and C34. Dimension lumber historically treated with CCA to .25 or .40 under AWPA standard C2 must now be treated with alternative preservatives. Examples of CCA Uses that will be permissible under the new label language The following list is taken from the 2001 edition of the AWPA standards to illustrate examples of the types of wood that fall within each standard. While the list is not exhaustive, it does provide some examples of specific uses within each AWPA commodity standards that may be treated with CCA. Lumber and Timber for Salt Water Use Only (AWPA Standard C2) Aquaculture timber, in salt water and subject to marine borer attack Boat Building material • Lumber, timbers, plywood, in salt water and subject to marine borer attack Bulkhead Sheathing • In salt water and subject to marine borer attack Mariculture lumbers and timbers • In brackish or saltwater use and subject to marine borer attack Marine lumber and timbers • In brackish or saltwater use and subject to marine borer attack Oyster farming timbers Highway Material • Structural lumber and timbers in salt water use and subject to marine borer attack Piles (AWPA Standard C3) Highway Material • Piles, foundation, land and fresh water use • Piling in salt water use and subject to marine borer attack Piles • Foundation (round) • Land and fresh water use (round) • Marine (round) in salt or brackish and subject to marine borer attack • Marine, dual treatment (round) Poles (AWPA Standard C4) Agriculture, Wood used on farms • Round poles • As round structural members Highway material • Poles, lighting Poles, agriculture • Round Poles, building • Round Poles, utility • Distribution • Transmission Plywood (AWPA Standard C9) Agriculture, Wood used on farms • Plywood, not in soil contact • Plywood, in soil contact Boat building material • Plywood, fresh water • Lumber, timbers, plywood, in salt water and subject to marine borer attack Building construction material • Roof decking, plywood Decking, Tongue and Groove • Flooring, plywood • Subflooring, plywood Decking • Roof, plywood Plywood • Sub-floor, damp, above ground • Exterior, above ground • Soil contact Wood for Highway Construction (AWPA Standard C14) Beams and timbers, glue laminated before or after treatment • For highway construction Decking • Highway bridge Highway material • Lumber and timber for bridges, structural members, decking, cribbing, and culverts • Structural lumber and timbers in salt water use and subject to marine borer attack • Piles, foundation, land and fresh water use • Piling in salt water use and subject to marine borer attack • Posts: Round, half-round, quarter round • Posts: Sawn • Poles, lighting Glue laminated beams Brine Storage buildings Posts, guardrail • Round • Sawn Posts, sawn four sides • Highway • Other Poles, Piles and Posts (including fence posts) Used as Structural Members on Farms, and Plywood Used on Farms (AWPA Standard C16) Agriculture, Wood used on farms • Round poles and posts as round structural members • Sawn poles and posts • As structural members • Plywood, not in soil contact • Plywood, in soil contact Sawn building poles and posts • As structural members Round building poles and posts • As structural members Sawn structural timbers (piles) • Supporting residential and commercial structures Poles, agriculture • Round • Sawn Wood for Marine Construction (AWPA Standard C18) Aquaculture timber, in salt water and subject to marine borer attack Mariculture lumber and timbers • In brackish or saltwater use and subject to marine borer attack Marine lumber and timbers • In brackish or saltwater use and subject to marine borer attack Oyster farming timbers Piles • Marine (round) in salt or brackish and subject to marine borer attack • Marine, dual treatment (round) Lumber and Plywood for Permanent Wood Foundations (AWPA Standard C22) Round Poles and Posts Used in Building Construction (AWPA Standard C23) Round building poles and posts • As structural members Poles, building • Round Sawn Timber Used to Support Residential and Commercial Structures (AWPA Standard C24) Sawn structural timbers (piles) • Supporting residential and commercial structures Piles • Sawn timber piles Sawn Crossarms (AWPA Standard C25) Crossarms, sawn Structural Glued-Laminated Members and Laminations before Gluing (AWPA Standard C28) Beams and timbers, glue laminated before or after treatment • Damp environment, above ground • Dry environment, above ground • Ground contact Highway material • Glue laminated beams Structural Composite Lumber (AWPA Standard C33) Highway material • Structural composite lumber Lumber, structural composite • Above ground • Soil or fresh water contact • Highway construction Shakes and Shingles (AWPA Standard C34) Shakes and Shingles Siding, commercial, residential, agricultural • Coated Painting and Staining or Natural Weathering
Hot dipped galvanized or stainless steel fasteners and fittings are recommended. Anti-corrosion coatings applied to fasteners and fittings in contact with treated wood will enhance long-term performance. Direct contact of SupaTimber® treated wood with aluminum fasteners and fittings is not recommended. Water Repellent and Prestain Options SupaTimber® treated wood is also available in most markets with the built-in water repellent protection of UltraWood. SupaTimber® DesignWood pressure-treated wood comes with a cedar tone pre-stained finish for those who want their project to have a stained finish look right from the start. SupaTimber® Recommended Retentions for Various Non-Residential, Industrial and Commercial Applications Application - Retention (lbs/CuFt) - Uses:
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