Approved Plant List

​To be considered for inclusion on this list, plants must go through a very structured process that starts with an initial plant walk-through to assess whether it has the proper equipment and trained personnel to process wood properly.

To complete the qualification process, the plant must then successfully produce a specified number of charges of white wood, followed by proper treatment of said wood, all under the careful eye of our partner, Timber Products Inspection. All of these steps must be completed within a 60-day period.

If a plant successfully qualifies and is listed on this list, it can be suspended or disqualified from the WQC program if it fails to maintain the same level of performance that it demonstrated during the qualification process.

There is no other published “Approved List” of plants associated with the cooperative program. WQC is also the only inspection/quality assurance program associated with the cooperative program that requires such a qualification process.

Approved Plant List

WQC NumberManaging CompanyPlant LocationPreservativeSpeciesMajor Product
1Langdale Forest Products Co.Valdosta, GA (229) 333-2500CCASPPoles
2Langdale Forest Products Co.Sweetwater, TN (423) 337-6105CCASPPoles
3Cox Wood of AlabamaVance, AL (205) 633-8608PSPPoles
4Hughes BrothersSeward, NE (402) 643-2991PDFXarms
5Carolina Pole, Inc.Eutawville, SC (803) 492-7728CCASPPoles
6McFarland Cascade – SheridanSheridan, OR (503) 843-2122P, NDF, PP, WCPoles
7McFarland Cascade Holdings, Inc.Whitmire, SC (803) 694-3668CCASPPoles
8North-South Wood PreservingNorth, SC (803) 492-7728PSP, DFXarms
10Baldwin Pole – Mississippi LLCWiggins, MS (601) 716-2178P, CCASPPoles
13Brooks Mfg. CompanyBellingham, WA (360) 733-1700PDFXarms
15Stella-Jones Canada Inc.Galloway BC, Canada (250) 429-3493PLP, WC, DF, YCPoles
16McFarland Cascade Pole & Lumber Co.Eugene, OR (541) 689-1278PDFPoles
18McFarland Cascade – Silver SpringsSilver Springs, NV (775) 577-2000PDFPoles
19Kisatchie Treating, LLCConverse, LA (318) 645-7525CCA, CSPPoles
23DeSoto TMCWiggins, MS (601) 928-3921CCASPPoles
25W.C. Meredith Co, Inc.East Point, GA (404) 767-2621PSPPoles
26Dis-Tran Wood Products, LLCVancouver, WA (360) 735-9356PDFXarms
27Dis-Tran Products Inc.Alexandria, LA (318) 640-6892PSP, DFXarms
31McFarland Cascade Pole & Lumber Co.Tacoma, WA (253) 572-3033PDF, WC, YCPoles
32Conrad Forest ProductsArbuckle, CA (530) 476-2894NDFPoles
33Carpenter’s Pole & Piling Co., LLCPicayune, MS (601) 749-7140CCA, CSPPoles
34Brisco Wood Preservers, Ltd.Brisco BC, Canada (250) 346-3315CCAWC, LP, YCPoles
35McFarland CascadeRison, AR (870) 325-7070P, CCASPPoles
38Bell Lumber & Pole CompanyNew Brighton, MN (651) 633-4334PWC, NP, DF, SPPoles
40Robbins Manufacturing Co.Tampa, FL (813) 971-3030CCASPPoles
42Carpenter Pole & Piling CompanyWiggins, MS (601) 716-6114CCASPPoles
43Baldwin Pole & PilingBay Minette, AL (251) 937-2141CCA, PSPPoles
46Atlantic Pole and Piling a division of Cox Industries, Inc.Vidalia, GA (912) 537-4188PNPPoles
48J. H. BaxterEugene, OR (541) 689-3801ACZA, C, PDFPoles
50Huxford Pole & Timber Co., Inc.Huxford, AL (251) 294-5495P, CCASPPoles
53Hydrolake Leasing & ServicesMcBain, MI (231) 825-2233CCANPPoles
54Lufkin Creosoting Co., Inc.Lufkin, TX (936) 634-4927CSPPoles
57Cahaba Pressure Treated Forest ProductsBrierfield, AL (205) 926-9888P, C, N, CCASPPoles
59Pennington Crossarm Co.Eugene, OR (541) 343-6968PDFXarms
60Apalachee Pole CompanyBristol, FL (850) 643-2121CCASPPoles
61T.R. Miller Mill CompanyBrewton, AL (251) 867-1285CCA, PSPPoles
62Stella-Jones Inc.New Westminster BC, Canada (604) 521-4385P, C, CCADF, WC, YCPoles
64Oklahoma Pole & Lumber, Inc.Broken Bow, OK (580) 835-2255PSPPoles
65Bell Lumber & Pole CompanySidney, NE (308)-254-1133PWC, DF, NP, SPPoles
67Ace Pole CompanyWaycross, GA (912) 449-4011CCASPPoles
68Permapost Products Co.Hillsboro, OR (503) 648-4156PDFXarms-TSO
70Stella-Jones Canada Inc.Carseland Alberta, Canada (403) 934-4600PWC, LP, DF, YCPoles
71Brown Wood Preserving CompanyKennedy, AL (205) 934-4600P, CCASPPoles
73Electric Mills Wood PreservingScooba, MS (662) 476-8000PSPPoles
76Macon Treating CompanyMacon, MS (662) 726-2932CCASPPoles
78Carolina Pole, Inc.Leland, NC (910) 371-3131P, CCASPPoles
80Kisatchie Treating CompanyAlexandria, LA (318) 442-2467C, P, CCASPPoles


ACZA - Ammoniacal Copper Zinc Arsenate
C - Creosote 
CCA - Chromated Copper Arsenate 
N - Copper Naphthenate
P - Pentachlorophenol 

DF - Douglas Fir
LP - Lodgepole Pine
NP - Northern or Red Pine
PP - Ponderosa Pine
SP - Southern Pine
WC - Western Red Cedar
YC - Alaska Yellow Cedar

Major Product:
TSO - Treating Service Only