Coastal Douglas Fir
*Hardwoods are not recommended for use with ACA, CCA,
Acceptable Preservatives (Check Specifications)
Creosote (Code indicates types of creosote)
C, TA, TB, TC,
Ammoniacal Copper Arsenate (ACA)
Chromated Copper Arsenate (CCA)(Types C,A,B)
SK, SC, SJ
Ammoniacal Copper Zinc Arsenate (ACZA)
Creosote or pentachlorophenol treated products should not be
used in any indoor structure or where there is possibility of contact
with humans, animals, or food products.
Acceptable Quality Marks: AWPB Marks as indicated.
LP-22 - Treated with ACA, CCA, or ACZA to a minimum retention of
LP-55 - Treated with creosote to a minimum retention of 10 pcf.