PART 2 - PRODUCTS
2.1
FRAMING MATERIALS
A.
Framing Lumber
1. Douglas Fir, No. 2; Southern Pine, medium grain, No. 2; or other lumber
product having allowable unit stresses not less than 575 psi unit stress in
bending (Fb) with 1,400,000 psi modulus of elasticity (E). Framing lumber
not carrying calculated stresses shall be WCLB Stud Grade Douglas Fir,
Southern Pine, or better.
2. Nominal Framing Member Sizes
a. Studs: 2 by 4
b. Rafters: 2 by 6
c. Plates: 2by8
Trim, finish, and frames shall be Southern Pine, Ponderosa Pine, White Pine, or
Douglas Fir, Grade C in accordance with WCLB
Exterior Siding: Vinyl siding style and color to be selected by Owner.
Sheathing
1. Shall conform to Product Standard PS 1-66, graded by American Plywood
Association. Place with 1/16-inch clearance at end joints, %-inch clearance
at side joints.
2. Building/panel board interior mounting walls shall be %-inch thick A-C
plywood.
3. Roof sheathing shall be %-inch thick CDX.
Markings
1. Each piece or each bundle of lumber, millwork, and trim shall be identified by
the grade mark of a recognized association or independent inspection agency
that is certified by the Board of Review, American Lumber Standards
Committee, to grade the species.
2. Each sheet of plywood shall bear the mark of a recognized association or
independent inspection agency that maintains continuing control over the
quality of the plywood. The mark shall identify the plywood by species group
or span rating, and shall show exposure durability classification, grade, and
compliance with PS 1.
3. Each treated piece shall be inspected in accordance with AWPA M2 and
permanently marked or branded by the producer in accordance with AWPA
M6, except that lumber which is smaller than 2 by 4 inches or shorter than 36
inches and bundled may be marked on outer faces only.
Moisture Content of Wood Products
1. Furnish air-dry or kiln-dry lumber.
2. The maximum moisture content of wood products at time of delivery to the
job site shall be as follows:
File No. 3066.09 Wood Framing and Insulation 06210 - 2 of 6 December 2017
