Base Build-Out, ANA Regional Brigade, Herat, Afghanistan AFHERATA

SECTION 06100

ROUGH CARPENTRY

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the

extent referenced. The publications are referred to in the text by basic
designation only.

AMERICAN FOREST & PAPER ASSOCIATION (AF&PA)

AF&PA T101 (1991; Supple 1993; Addenda Apr 1997;

Supple T02) National Design Specification
for Wood Construction

AF&PA T11 (1988) Manual for Wood Frame Construction

**

AMERICAN INSTITUTE OF TIMBER CONSTRUCTION (AITC)

AITC 111 (1979) Recommended Practice for Protection

of Structural Glued Laminated Timber
During Transit, Storage and Erection

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM A 307 (2000) Carbon Steel Bolts and Studs,

60,000 PSI Tensile Strength

ASTM F 547 (1977; R 1995) Definitions of Terms

Relating to Nails for Use with Wood and
Wood-Based Materials

APA - THE ENGINEERED WOOD ASSOCIATION (APA)

APA EWS R540C (1996) Builder Tips Proper Storage and

Handling of Glulam Beams

FACTORY MUTUAL ENGINEERING AND RESEARCH (FM)

FM LPDS 1-49 (1995) Loss Prevention Data Sheet -

Perimeter Flashing

1.2 DELIVERY AND STORAGE

Materials shall be delivered to the site in undamaged condition, stored off

ground in fully covered, well ventilated areas, and protected from extreme
changes in temperature and humidity. Laminated timber shall be handled and
stored in accordance with AITC 111, APA EWS R540C or equivalent DIN, BS, or
EN standards.

SECTION 06100 Page 1

Base Build-Out, ANA Regional Brigade, Herat, Afghanistan AFHERATA

PART 2 PRODUCTS

2.1 LUMBER AND SHEATHING

2.1.1 Grading and Marking

2.1.1.1 Lumber Products

Solid sawn and finger-jointed lumber shall bear an authorized gradestamp or

grademark recognized by ALSC (American Lumber Standard Committee, Inc.), or
an ALSC recognized certification stamp, mark, or hammerbrand, or stamp or
mark for grading per equivalent DIN, BS, or EN standards. Surfaces that
are to be exposed to view shall not bear grademarks, stamps, or any type of
identifying mark. Hammer marking will be permitted on timbers when all
surfaces will be exposed to view.

2.1.1.2 Plywood and Other Sheathing Products

Materials shall bear the grademark or other identifying marks indicating

grades of material and rules or standards under which produced, including
requirements for qualifications and authority of the inspection
organization. Except for plywood and wood structural panels, bundle
marking will be permitted in lieu of marking each individual piece.
Surfaces that are to be exposed to view shall not bear grademarks or other
types of identifying marks.

2.1.2 Sizes

Lumber and material sizes shall conform to requirements of the rules or

standards under which produced. Unless otherwise specified, lumber shall
be surfaced on four sides. Unless otherwise specified, sizes indicated are
nominal sizes, and actual sizes shall be within manufacturing tolerances
allowed by the standard under which the product is produced.

2.1.3 Moisture Content

At the time lumber and other materials are delivered and when installed in
the work their moisture content shall be as follows:

a. Treated and Untreated Lumber: 100 mm or less, nominal thickness,

19 percent maximum. 125 mm or more, nominal thickness, 23 percent maximum
in a 75 mm perimeter of the timber cross-section.

2.1.4 Miscellaneous Wood Members

2.1.4.1 Nonstress Graded Members

Members shall include bridging, corner bracing, furring, grounds, and

nailing strips. Members shall be in accordance with TABLE I for the
species used. Sizes shall be as follows unless otherwise shown:

Member Size mm (inch)

_________ ________________

Bridging 25 x 75 (1 x 3) or 25 x 100 (1 x 4)
for use between members 50 x 300
(2 x 12) and smaller; 50 x 100 (2 x 4)
for use between members larger than
50 x 300 (2 x 12).

SECTION 06100 Page 2

Base Build-Out, ANA Regional Brigade, Herat, Afghanistan AFHERATA

Member Size mm (inch)

_________ ________________

Corner bracing 25 x 100 (1 x 4).

Furring 25 (1) x 50 (2) or 75 (3)

Grounds Plaster thickness by 38.

Nailing strips 25 x 75 (1 x 3) or 25 x 100 (1 x 4)

when used as interior
finish, otherwise 50 mm (2 inch) stock.

2.1.4.2 Sill Plates

Sill plates shall be standard or number 2 grade.

2.1.4.3 Blocking

Blocking shall be standard or number 2 grade.

2.1.4.4 Rough Bucks and Frames

Rough bucks and frames shall be straight standard or number 2 grade.

2.2 ACCESSORIES AND NAILS

Markings shall identify both the strength grade and the manufacturer.
Accessories and nails shall conform to the following:

2.2.1 Anchor Bolts

ASTM A 307 or equivalent DIN, BS, or EN standards, size as indicated,

complete with nuts and washers.

2.2.2 Bolts: Lag, Toggle, and Miscellaneous Bolts and Screws

Type, size, and finish best suited for intended use. Finish options
include zinc compounds, cadmium, and aluminum paint impregnated finishes.

2.2.3 Clip Angles

Steel, 5 mm (3/16 inch) thick, size best suited for intended use; or
zinc-coated steel or iron commercial clips designed for connecting wood
members.

2.2.4 Expansion Shields

Type and size best suited for intended use.

2.2.5 Joist Hangers

Steel or iron, zinc-coated, size to fit members where used, sufficient

strength to develop the full strength of supported member, complete with
any special nails required.

SECTION 06100 Page 3

Base Build-Out, ANA Regional Brigade, Herat, Afghanistan AFHERATA

2.2.6 Nails and Staples

ASTM F 547 or equivalent DIN, BS, or EN standards, size and type best
suited for purpose; staples shall be as recommended by the manufacturer of
the materials to be joined. For sheathing and subflooring, length of nails
shall be sufficient to extend 25 mm into supports. In general, 8-penny or
larger nails shall be used for nailing through 25 mm thick lumber and for
toe nailing 50 mm thick lumber; 16-penny or larger nails shall be used for
nailing through 50 mm thick lumber. Nails used with treated lumber and
sheathing shall be galvanized. Nailing shall be in accordance with the
recommended nailing schedule contained in AF&PA T11 or equivalent DIN, BS,
or EN standards. Where detailed nailing requirements are not specified,
nail size and spacing shall be sufficient to develop an adequate strength
for the connection. The connection's strength shall be verified against
the nail capacity tables in AF&PA T101 or equivalent DIN, BS, or EN
standards. Reasonable judgement backed by experience shall ensure that the
designed connection will not cause the wood to split. If a load situation
exceeds a reasonable limit for nails, a specialized connector shall be used.

PART 3 EXECUTION

3.1 INSTALLATION OF MISCELLANEOUS WOOD MEMBERS

3.1.1 Bridging

Wood bridging shall have ends accurately bevel-cut to afford firm contact
and shall be nailed at each end with two nails. Metal bridging shall be
installed as recommended by the manufacturer. The lower ends of bridging
shall be driven up tight and secured after subflooring or roof sheathing
has been laid and partition framing installed.

3.1.2 Corner Bracing

Corner bracing shall be installed when required by type of sheathing used

or when siding, other than panel siding, is applied directly to studs.
Corner bracing shall be let into the exterior surfaces of the studs at an
angle of approximately 45 degrees, shall extend completely over wall
plates, and shall be secured at each bearing with two nails.

3.1.3 Blocking

Blocking shall be provided as necessary for application of siding,

sheathing, subflooring, wallboard, and other materials or building items,
and to provide firestopping. Blocking for firestopping shall ensure a
maximum dimension of 2400 mm for any concealed space. Blocking shall be
cut to fit between framing members and rigidly nailed thereto.

3.1.4 Nailers and Nailing Strips

Nailers and nailing strips shall be provided as necessary for the

attachment of finish materials. Nailers used in conjunction with roof deck
installation shall be installed flush with the roof deck system. Stacked
nailers shall be assembled with spikes or nails spaced not more than 450 mm
on center and staggered. Beginning and ending nails shall not be more
than 150 mm for nailer end. Ends of stacked nailers shall be offset
approximately 300 mm in long runs and alternated at corners. Anchors
shall extend through the entire thickness of the nailer. Strips shall be
run in lengths as long as practicable, butt jointed, cut into wood framing
members when necessary, and rigidly secured in place. Nailers and nailer

SECTION 06100 Page 4

Base Build-Out, ANA Regional Brigade, Herat, Afghanistan AFHERATA

installation for Factory Mutual wind uplift rated roof systems specified in
other Sections of these specifications shall conform to the recommendations
contained in FM LPDS 1-49 or equivalent DIN, BS, or EN standards.

3.1.5 Wood Grounds

Wood grounds shall be provided as necessary for attachment of trim, finish,

and other work to plaster. Grounds shall be run in lengths as long as
practicable, butt jointed, and rigidly secured in place.

3.1.6 Furring Strips

Furring strips shall be provided at the locations shown. Furring strips

shall be installed at 400 mm on center unless otherwise shown, run in
lengths as long as practicable, butt jointed and rigidly secured in place.

3.1.7 Rough Bucks and Frames

Rough bucks shall be set straight, true, and plumb, and secured with
anchors near top and bottom of each wood member and at intermediate
intervals of not more than 900 mm. Anchors for concrete shall be
expansion bolts, and anchors for masonry shall be 5 x 32 mm (3/16 x 1-1/4
inch) steel straps extending not less than 200 mm into the masonry and
turned down 50 mm into the masonry.

3.1.8 Sill Plates

Sill plates shall be set level and square and anchor bolted at not more
than 1800 mm on centers and not more than 300 mm from end of each piece.
A minimum of two anchors shall be used for each piece.

-- End of Section --

SECTION 06100 Page 5