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WOOD POLES

Guelph Poles - Samples Species Selection

Guelph Utility Pole carries ample inventories of various lengths and classes of poles from several Canadian species:




Western Red Cedar (Thuja plicata donn), a thin sapwood western species, is available in both distribution and transmission lengths, treated with either CCA or pentachlorophenol. Cedar provides an extremely durable, climbable pole with a natural resistance to decay.

Lodgepole Pine (Pinus contorta or Pinus latifolia s. Watson), a western species with moderately thick sapwood, is also available for distribution-length poles, treated with CCA or pentachlorophenol. It provides a widely used, durable, climbable product.

Red Pine (Pinus resinosa Alt.), Red Pine, a thick sapwood Ontario species which is easily treated, is the primary species treated with CCA and CCA-PEG by Guelph Utility Pole for distribution length poles. It offers an extremely durable, climbable and environmentally sound product.

Jack Pine (Pinus banksiana Lamb), a moderately thick sapwood Ontario species similar to Lodgepole Pine, is available for distribution-length poles treated with CCA or pentachlorophenol. Like Lodgepole Pine, it is durable and climbable.

Douglas Fir (Pseudotsuga Menziesii), Douglas Fir, a moderately thick sapwood species is available in distribution and transmission lengths, treated in pentachlorophenol.

Dimension and strength standards are contained in CSA standards O15.1, O15.2 and O15.3, which correspond to ANSI standards O5.1 and O4.4, BSI 1990 standards and AFNOR standard C67-100-11.

 Preservative Options

K-33® CCA (chromated copper arsenate)
The proven ability of K-33 type CCA-c treated poles to provide decades of reliable service gives them a major economic advantage. Evaluation of initial costs versus an expected longevity of 40 plus years gives a decided advantage to CCA treated poles.

CCA-PEG® Plus (polyethylene glycol additive) is an oxide based aqueous solution in a concentration of 2 to 3 percent by weight, which is forced into the wood in large pressurized retort vessels at up to 150 psi. Research has shown that properly treated CCA poles will last well over 40 years.

Complex chemical reactions take place between the CCA and the wood substrate which render the preservative insoluble and highly leach resistant. Dependent on time, temperature and humidity, these reactions are greatly accelerated in Guelph Utility Pole's combination fixation/dry kiln.


Pentachlorophenol in full-length thermal treatment and butt treatment. An oil-borne preservative, penta imparts water repellency, improves dimensional stability and reduces checking and splitting of poles.

Poles are treated to CSA standard O80.4, which compares internationally with AWPA C4, BSI 913 and 4072, and AFNOR C67-100. CSA standard O80.2 governs the treating of most other commodities.




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Guelph Utility Pole Company Limited
Box 154, R.R. #5, Guelph, Ontario, Canada, N1H 6J9
Tel: (519) 822-3901
Fax: (519) 822-5411
E-mail: info@guelphpole.com