Division 6 - Wood and Plastics 6.01 WOODWORK

     A.   ROUGH CARPENTRY

          1.   Lumber Standards: with PS 1.  Comply with PS 20;
               Plywood standards comply

          2.   Grading for lumber and plywood shall be marked on
               each piece with type, grade, mill and grading
               agency (APA, WWPA, SPIB, etc.).

          3.   Minimum thickness for plywood: Roofing - 5/8",
               Flooring - 3/4" and Walls - 1/2".

          4.   Pressure-treated Wood: Comply with AWPA Standard C-2
               for lumber; C-9 for plywood. Treat with water-borne
               preservatives per AWPB LP2 for cants,
               blocking, plates, etc., in connection with roofing
               and flashing, sills and furring, and other items in
               contact with masonry or concrete. Kiln-dry after
               treatment.

          5.   Fire-retardant Wood Where Required: Comply with
               AWPA standards with a flame spread rating of 25 or
               less. Provide UL label for each piece of lumber or
               plywood.

     B.   WOOD TRUSSES

          1.   "Monoplanar" Trusses: Comply with TPI "Design
               Specification for Metal Plate Connected Wood
               Trusses" and N.F.P.A. "National Design
               Specification for Wood Construction."

          2.   Design must be approved and certified by a
               structural engineer licensed to practice in
               Maryland.

          3.   Lumber Standards: Comply with PS 20. All lumber
               S4S.
          
          4.   Truss connector plates shall be manufactured by a
               member of TPI, complying with TPI quality
               standards. All plates shall be hotdipped
               galvanized, designation G60.

          5.   Provide a stress diagram showing design loads or a
               print-out of computer design.

     C.   ARCHITECTURAL WOOD WORK

          1.   All custom-made wood and plastic laminate faced
               casework, counter tops and related mill work items
               shall comply with AWI "Architectural Wood Work
               Quality Standards."

          2.   The level of construction (custom, premium, etc.),
               materials and finishes shall be spelled out for
               each individual type of item, properly referenced
               to AWI specifications.
     
          3.   Completely detailed shop drawings shall be
               required, along with samples of all finish
               materials.

               Note, that these items are separate and distinct
               from "Manufactured Case Work."