061000MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
06 10 00 - 1
SECTION 06 10 00 - ROUGH CARPENTRY
PART 1 - GENERAL
1.01 General Conditions, Supplementary Conditions and applicable parts of Division 1 form a part
of this Specification and the Contractor shall consult them in detail for instructions.
1.02 The Drawings on which this Contract is based are listed in Section 00 86 00.1 and 00 86
00.2. Consult all Drawings, note all conditions that may affect the Work and care for same in
executing the Contract.
1.03 The Contractor under this Section shall provide all materials, labor, equipment and
appliances required to do all the rough carpentry and related Work necessary for the proper
completion of the operations in accordance with the intent of the Contract Documents.
The Work of this Section shall include, but not be limited to, the following:
A. Temporary enclosure for openings and other temporary items, including railings, ladders and
similar items required under the applicable Sections of Division 1.
B. Wood furring & blocking.
C. Wood blocking and nailers not specified under other Sections.
D. Wood preservative pressure treatment blocking for all associated roof blocking..
E. Rough hardware, including bolts, screws, spikes, nails, and clips, as required to install rough
carpentry work.
F. Installation of any items specified elsewhere to be installed under this Section and those
items under other Sections where installation is not specified.
G. Any other miscellaneous items of carpentry or fastening or installing of same.
H. Coordinate the rough carpentry work of this Section with the work of the various trades
responsible for applying finish materials and other items to rough carpentry work. Furnish
and install furring, blocking, and shims as required to make the rough carpentry surfaces
acceptable to these trades.
1.04 Reference Standards, Specifications, and Codes
A. The following are hereby made a part of this Section by reference thereto:
1. American Wood Preservers Institute (AWPI) Standard C2.
2. American Wood Preservers Bureau (AWPB) Quality Mark LP2.
3. American Plywood Association (APA) Grades and Specifications.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
06 10 00 - 2
4. National Lumber Grades Authority. American Lumber Standards and Grading Rules
and Standards of the various lumber associations whose species are being used, with
grademarks for same.
5. U. S. Department of Commerce Simplified Practice Recommendation R-16, for sizes
and use classifications of lumber, and Product Standard PS-1, for quality of plywood.
6. National Forest Products Association National Design Specifications for Stress-
Grade Lumber and Its Fastenings.
1.05 Related Sections:
A. Section 01 27 00 Unit Prices
B. Section 02 41 19 Selective Demolition
C. Section 07 53 23 Roofing
1.06 Submittals
A. Submit the following in accordance with Section 01 33 00.
1. Specifications and product data for lumber and plywood, including fabrication
process, treatments and accessories.
PART 2 - PRODUCTS
2.01 Grading Standards and Quality
A. All stress-grade lumber shall conform to the requirements of NFPA National Design
Specifications for Stress-Grade Lumber and its Fastenings.
B. All lumber shall:
1. Be new, dressed four sides (S4S) clear and free from warping and other defects.
2. Have a moisture content not exceeding 19 percent when delivered to the project.
3. Be in accordance with the grading rules of the lumber manufacturer's association under
whose jurisdiction the specie of lumber is produced.
C. Plywood: Conform to the requirements of Product Standard PS-1 and bear applicable APA
grade trademarks.
2.02 Lumber, Plywood and Other Rough Carpentry Materials
A. Stress-grade lumber: Conform to the following or better:
Member Species/Grade No. Minimum Allowable (p.s.i.)
Fb Fc E
Joists Hem-Fir No. 2 1,100 1,400,000
Posts Hem-Fir No. 1 850 1,300,000
Studs Spruce-Pine Fir No. 3 575 450 1,200,000
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
06 10 00 - 3
B. Non-stress grade lumber. Construction, of No. 2 and Better, Grade Hem/Fir or Spruce,
Grade-stamped S-Dry.
C. Plywood for panelboard mountings and similar uses: CC-Plugged Int-APA, touch-sanded.
D. Plywood sheathing for roofs and other concealed from view locations: CD-EXT-APA, in
thicknesses indicated on the Drawings.
E. Treatments for Wood and Plywood:
1. Pressure preservative treatment for application to all wood sleepers in conjunction with
preformed roofing; blocking, nailers, cant strips, and curbs in conjunction with roofing
and roofing sheet metal work; and for wood nailers and blocking embedded in concrete
and masonry: Pressure treated with a toxic salt wood preservative meeting or
exceeding Federal Specification TT-W-535, Type B, applied in a closed cylinder by
vacuum process, full cell method in strict accordance with the recommended practices
of the American Wood Preservers Association and Federal Specification TT-W-571g,
with a retention of at least 0.35 pounds of dry salts per cubic foot of wood. Re-dry all
treated wood before installation.
2. Fire-retardant treatment for application to all wood framing members; plywood
subflooring/underlayment; and for plywood sheathing used in conjunction with interior
surfaces: Pressure fire-retardant treatment, providing a fire hazard classification of 25
Flame Spread, Smoke Developed, and Fuel Contributed, with no signs of progressive
combustion when the 10-minute test is continued for an additional 20 minutes. Osmose
Flame Proof LHC, Kippers Dricon, Hoover Universal Pro-Tex, or equal.
F. Bolts and Fastenings:
1. For lumber having actual thickness of 1-1/2 inches or greater to masonry and concrete:
Steel anchor bolts or expansion bolts, as most applicable for the specific receiving
surface material, 3/8 inch minimum diameter, spaced as shown, and staggered as far
as practicable. Countersink all bolt heads, and provide head washers of matching
material.
2. For lumber having actual thickness of greater than 7/8 inch but less than 1-1/2 inches to
masonry and concrete: Steel anchor bolts or expansion bolts, as most applicable for
the specific receiving surface material, at least 1/4 inch diameter of the most
appropriate lengths for the specific application, spaced as shown, and staggered as far
as practicable. Countersink all bolt heads, and provide head washers of matching
material.
3. For lumber having actual thickness of 7/8 inch and less: Steel anchor bolts or
expansion bolts, at least 1/4 inch in diameter, or screws, of the most appropriate sizes;
in lengths most suitable for the specific application, countersunk, spaced as shown, and
staggered as far as practicable. Provide head washer of matching material.
4. All bolts embedded into concrete or masonry shall be hot-dipped galvanized. All nails
shall be non-corrosive type.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
06 10 00 - 4
PART 3 - EXECUTION
3.01 Storage of Materials
A. Store all materials in an elevated dry location, protected by waterproof coverings. Do not
store within the building until masonry, concrete and other such wet work has been
completed and allowed to dry.
3.02 Temporary Bracing
A. Provide and maintain, until such time as permanently built into the structure, all temporary
bracing for pressed steel frames, sills, and other work requiring bracing and which is not
specified as being provided under other Sections of the Specifications.
3.03 Protection
A. Do such work as is necessary to cover and protect all finishes and other work from damage
during construction. Provide and maintain temporary substantial wood handrails around all
openings through floors, and provide temporary traffic-supporting coverings for roof openings
until permanent items are installed thereover.
3.04 Temporary Enclosures
A. Furnish, install and maintain in weatherproof condition until permanent enclosure items are
installed, substantial temporary enclosures of weatherproof construction for all openings in
the exterior walls of the building, as required to provide proper installation conditions for all
trades engaged in the work. Remove temporary enclosures only when permanent
enclosures will be immediately installed thereafter.
3.05 Runways and Ladders
A. Furnish set, and maintain runways and ladders, leading from the lowest point of the building
to the roofs, and serving conveniently onto each floor for the general use of all workmen.
B. Ensure that temporary ladders are of sufficient length and in a position to permit the top end
to project not less than three feet above the floor, wall or other surface against which it is
placed.
3.06 General Installation of Rough Carpentry Work
A. Closely coordinate the installation of the rough carpentry work with the work of other trades
responsible for the installation of interfacing or overlaying materials, so as not to delay the
work of the related trades.
B. Erect all rough carpentry work plumb, level, and true with tight, close fitting joints, securely
attached and braced to surrounding construction, all in a first class workmanlike manner.
Counterbore for bolt heads, nuts, and washers where required to avoid interference with
other materials. Bear complete responsibility for structural integrity, connections, and
anchorage of all rough carpentry work.
C. Use as long lengths as practicable for wood nailers, blockings, and curbs, to minimize
number of joints, and attach the members with the types, and spacings, of fasteners specified
herein.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
06 10 00 - 5
D. Fastening of nailers, blocking and other rough lumber. Pre-drill and counterbore all number
at fastener locations. Install nailers and blocking with specified fastenings equipped with
large washers, and space the fasteners not more than 18 inches on centers, and stagger
lines of fasteners for all lumber having a width greater than 3-1/2 inches. Use not less than
two fasteners per piece of lumber. Ensure that no part of the fastener or nuts extend beyond
the top surface of the lumber. Install wood shims, as needed to ensure completely true
surfaces. Miter all intersecting corners of lumber, and fit all adjacent running pieces with tight
ends. After making cuts in treated lumber, and prior to the placement thereof, brush on a
heavy coat of the specified preservative to the cut ends.
E. Install wood grounds and furring as required for proper attachment of the work of other trades
in accordance with the requirements provided by the respective related trades.
3.07 Clean-Up
A. Upon completion of rough carpentry work in any given area, remove all rubbish and debris
from the work area and leave a broom in clean condition.
END OF SECTION