Wood preservation facilities, chromated copper arsenate: chapter B, table 1

Use for Industrial Wood Products Only

1. Poles for highway and utility uses
2. Fence posts and poles as defined in standard Canadian Standards Association (CSA) O80.16-97 for use on farms and piles, and round, half-round and quarter round fence posts and rails; poles, round posts and posts sawn four sides used as structural members on farms; and plywood used on farms
3. Round poles and posts used in building construction
4. Sawn crossarms
5. Wood for marine construction (salt and brackish water immersion) and structures above the water level (including cross bracing of 50 mm × 200 mm [2" × 8"] and/or 75 mm × 150 mm [3" × 6"] and larger nominal dimensions) subject to frequent salt water splash from wave action and degradation by marine organisms
6. Land, fresh water, foundation and marine piles as defined in CSA O80.3-97.
7. Lumber and plywood for permanent wood foundation as defined in standard CSA O80.15-97
8. Sawn timbers 125 mm (5") and thicker used to support commercial structures or residential stilt home structures
9. Structural glued-laminated members and laminations before gluing (mechanical fasteners may be used in combination with, or in lieu of, glue) limited to commercial/industrial uses
10. Plywood
11. Structural composite lumber
12. Shakes and shingles
13. Wood for highway construction as defined in standard Canadian Standards Association (CSA) O80-14-97, including lumber for bridges and structural members; lumber for cribbing, culverts and bridge parts; piles used on land and in fresh and salt water structural lumber in salt water; posts (fence, guard rail, guide, sign and sight); lighting poles; bridge hand rails; guardrails; posts; and structural composite lumber
14. Lumber, timbers and plywood for cooling towers
15. Lumber for roller coaster construction
16. Wood for construction of road salt storage buildings

*Note: permitted uses and limitations of CCA-treated wood may change over time. Refer to pesticide label.