Government Contract | North Carolina
Treated Lumber & Plywood

Specifications include, but are not limited to: 1082-1 GENERALUse Southern Pine timber and lumber graded in accordance with the current grading rules of theSouthern Pine Inspection Bureau unless otherwise specified or approved by the Engineer.Use stress rated grades equal to or higher than the grades specified. For temporary crossings, theuse of stress rated lumber having stress ratings below those specified may be used if approved bythe Engineer.Have all timber and lumber, including any preservative treatment, inspected and/or tested at nocost to the Department by an NCDOT approved commercial inspection company before it isdelivered to the project. Provide industry standard commercial inspection reports for each shipmentof untreated timber or lumber before its use on the project. Provide industry standard commercialinspection reports and treatment test reports for each shipment of treated timber or lumber beforeits use on the project. Perform all timber and lumber treatment inspections in accordance withStandard M2 (Part A) of the AWPA Specifications. In addition, brand, hammer mark, ink stamp ortag each piece of timber or lumber with the approved commercial inspection companys uniquemark to indicate it has been inspected.1082-3 TREATED TIMBER AND LUMBER(A) GeneralGrade marked lumber will not be required. Brand or ink stamp each piece of treated lumber inaccordance with the AWPA Standard M6.(B) Bridges, Fender Systems and PilesLumber for bridges that is 2 inches to 4 inches thick and 2 inches to 4 inches wide shall conform toStructural Light Framing, Grade No. 1 Dense. Lumber for bridges that is 2 inches to 4 inches thickand 6 inches wide and wider shall conform to Structural Joists and Planks, Grade No. 1 Dense.Lumber for bridges that is 5 inches and thicker along the least dimension shall conform to StructuralLumber, #1 Dense or Dense Select Structural (DSS). Lumber for fender systems shall conform toStructural Lumber, #1 Dense or Dense Select Structural (DSS).Timber for piles shall meet ASTM D25 except that the timber shall be Southern Pine and have atleast a 2 inches sap ring or a 3 inches sap ring were called for by the contract or where thepreservative is creosote, and the retention is greater than 18 lbs./cf. Rough lumber will beacceptable except where surfacing is called for by the contract or bills of material. Rough lumbermay vary 1/4 inch from the dimensions shown in the plans or bill of material. Dressed lumber maybe 1/8 inch 1 scant from the dimensions shown in the plans or bill of material. A 1/4-inch tolerancein length will be permitted.1082-4 PRESERVATIVE TREATMENT(A) GeneralGive all timber and lumber required to be treated a preservative treatment in accordance withAWPA Standards. The required retention of chromated copper arsenate is specified on the oxidebasis. Preservative retention will be determined by the assay method. After treatment, handle thetimber and lumber carefully with rope slings, without sudden dropping, breaking of the fibers,bruising, or penetrating the surface with tools or hooks. Treated timber and lumber will not beaccepted for use unless it has been inspected and found satisfactory, both before and aftertreatment, and shall be delivered to the project site in a condition acceptable to the Engineer. Usetreating plants that have laboratory facilities at the plant site for use of the inspector in accordancewith AWPA Standard T1.(B) Timber PreservativesUse timber preservatives conforming to AWPA Standard U1 and T1.(C) Bridges, Fender Systems and PilesTreat timber and lumber for bridges and fender systems in accordance with AWPA Standard U1,except the type of preservative and the retention of preservative will be as required by the contract.Treat piles in accordance with AWPA Standard U1 and T1, 1 except the type of preservative and theretention of preservative will be as required by the contract.1 200 EA 2x 6 x 20 SYP Grade No. 1 Dense S1S1E 0.60 CCA2 300 EA 3 x 8 x 20 SYP Grade No. 1 Dense S1S1E 0.60 CCA3 100 EA 4 x 6 x 20 SYP Grade No. 1 Dense S1S1E 0.60 CCA4 300 EA 4x 8x 20 SYP Grade No. 1 Dense S1S1E 0.60 CCA