| Treated wood use limitations in Canada (3) |
Use for Industrial Wood Products Only
- Poles for highway and utility uses
- 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
- Round poles and posts used in building construction
- Sawn crossarms
- 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
- Land, fresh water, foundation and marine piles as defined in CSA O80.3-97.
- Lumber and plywood for permanent wood foundation as defined in standard CSA O80.15-97
- Sawn timbers 125 mm (5") and thicker used to support commercial structures or residential stilt home structures
- 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
- Plywood
- Structural composite lumber
- Shakes and shingles
- 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
- Lumber, timbers and plywood for cooling towers
- Lumber for roller coaster construction
- 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. |
