We've hired contractors to build a couple of room additions, and we drew up
blueprints and got bids on a full house once, so I'm familiar with home
construction and the specifications associated. The first room
addition we did was specified in a one-page contract, very brief and
vague. Mistake! Lots of misunderstandings, leading to hard
feelings. The next room addition we did was much better: I
wrote up a 5 page detailed specification and everyone was happier: the
contractor was able to make a more precise bid; and also didn't have to waste
time asking the customers (us) what model of sink we wanted etc. Most
importantly, there were no misunderstandings and no hard feelings.
We wrote a specification for a complete house, and it took me awhile to get
all the details right: there weren't too many examples on the web.
So I thought Id pass along my specification so others could use it as a template
to start their own projects with. Good luck!
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Special Framing
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10' plate height main floor; 9' plate height
basement. Front porch ceiling
13'.
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Placement of home on lot
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Locate north wall of house exactly 5'
from north lot line; locate
west edge of deck 25' from
west (golf side) lot line.
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Grades
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Main floor line 20" above front yard grade.
Basement slab line 8" above rear yard grade.
Slope on side per attached elevations.
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215
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Excavation
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Undisturbed soil - sand & gravel.
Move large boulders as needed.
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2301
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Footing Material
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2500 PSI
concrete 1/2" vertical reinforcing steel 24" OC as per code
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2401
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Foundation Material
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2500 PSI concrete 1/2" vertical reinforcing
steel 24" OC as per code.
2 rows of horizontal 1/2" reinforcing steel as per code
requirement.
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245
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Radon Mitigation
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Active
Radon Mitigation
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250
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Water Proofing
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Asphalt
Emulsion
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270
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Foundation Drainage system
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As
required: 4" drain (PVC) with 2" drain rock
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2701
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Garage Drain
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No
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3201
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Framing Material
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Sill Plates:
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2x4 and 2x6 Pressure treated fir
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Bearing Walls
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2x4 and 2x6 fir
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Underlayment
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Underlayment:
11/32" APA plywood under vinyl floors; Wonderboard under tile.
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Ceiling Height
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Main floor
10'; basement 9';
porch 13'.
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Ceilings
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All ceilings flat.
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Exterior wall
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2" x 6" fir 24" on center;
Advaced Framing. Includes
walls between garage and heated rooms.
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Interior walls
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2" x 4";
16" on center.
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Garage walls, exterior
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2" x 4"; 16" on center.
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Basement walls
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2" x 6" furred walls adjacent to all
concrete foundation walls (see plan for locations).
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Plates
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Single bottom, double top.
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Subfloor
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3/4" Tongue and groove OSB.
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Subfloor glued
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T & G subfloor glued and nailed to joists.
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Roof sheeting
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15/32" OSB
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Wall sheeting
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7/16"
OSB
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Vapor barrier
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Polyurethane barrier on all exterior walls
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Roof framing
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Manufactured trusses 24" OC
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Roof
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All roof components are hip; except following
are gable: over the one-car garage door, and the front porch.
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Eaves
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Extend 18" to 20" beyond walls.
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Roof over deck
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None except for eaves.
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Main floor joists
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LP brand, LPI joists. 11 7/8" engineered joists, 16" on center.
Joists will be selected in
accordance with span tables in the latest version of LPI 26/30/36/56
Technical Guide. Load assumption is 12 PSF dead load and 40 PSF live load.
Maximum total load deflection no more than 1/2".
Clear spans longer than 19'-2" use LPI-56; spans longer than
18'-2" use LPI-36; spans longer than 17'-7" use LPI-30; all
other spans use LPI-26.
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Basement beams
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TrusJoist brand, Parallam PSL.
Beam sizing will be in accordance with the load tables in the
latest version of TrusJoist Specifiers Guide for Parallam PSL Headers,
Beams, and Columns. Load
assumptions will be 52 PSF with deflection limit L/480.
Long beam in Rec Room will be Parallam 5-1/4" x 16".
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Decorative columns and beams
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Main floor great room has some floor-to-ceiling
columns. Non-load bearing.
Located per plan.
Plan also includes some decorative (non load-bearing) beams that
attach to the columns. See item 620 for finishing details on columns.
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Porch (exterior)
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Two columns supporting porch roof.
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Tub and shower
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Tub and Shower alcoves: Studs 16" OC
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Attic Access
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Approx 2' x 3' access to attic.
In hallway.
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Stairs
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Rise/Run: all stairs, interior and exterior,
have rise = 7.5" and run = 10"
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In Floor heat
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No
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323
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Soffit
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LP
Innerseal soffit panel
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330
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Basement floor
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In Floor Heating
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No
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Stain/Acid
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No
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3353
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Garage Floor
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Sq Ft: per plans
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3000 PSI
concrete hard trowel steel 24" OC 1/2" rebar 24" OC
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Garage Floor
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Slope garage floor to overhead doors
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Garage Floor
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Control joints approx every 10'
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Garage Floor
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Garage floor approx 8" below main floor
level.
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Floor Drain
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No
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340
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Driveway
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Size and shape per plan. Broom finish concrete.
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Driveway slope
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If driveway runs downhill from street towards garage:
ensure lowest point of driveway is about 3' from garage doors (to
prevent rain from entering garage).
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340
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Front Porch
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Size and
shape per plan. Exposed
aggreagate concrete.
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Front Porch
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Two steps down to grade, surrounding entire
porch.
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340
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Walkway, front
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6' wide exposed aggregate; 1/2" reinforcing
steel 48" on center.
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Walkway, side
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Side walkway:
3' wide concrete walkway on north (garage) side of house, extending
full length of house. Gradual
slope (no steps). Adjacent to
house (no gap for planter). 1/2" rebar 48" OC.
Broom finish. Slope
away from house.
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340
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Patio
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Size per plan.
Exposed aggregate 1/2" reinfocing steel 48" on center.
Approximate shape shown on plan, but owners may make small changes.
Slope patio away from house approx 1" per 10'.
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340
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Retaining wall
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Small retaining wall on south side, located per
plans. Size as needed for
full-height siding west of retaining wall.
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AC slab
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Concrete slab for AC compressor, approx 4' x 4',
located per plans.
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410
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Roof
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Owens Corning "Oak Ridge PRO-30"
Asphalt / fiberglass shingle. 30
year warranty.
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Color
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Driftwood
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Slope
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7:12
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Valleys
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Valleys are copper with ice and water shield
backing.
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Roof Venting System
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Standard
roof and soffit vents.
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420
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Ext. Brick Trim
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Front elevation covered with artificial
rock; see attached plan for coverage.
Pattern, arches, and details are similar to that shown on G. Finch
plan 2223, including keystones, arches, columns, ledges, and 2' wrap
around sides of house. Covers
two porch columns. Owens
Corning brand - Cultured Stone. Style
is "Country Ledgestone" ; color is "White Oak".
50 year warranty.
For garage and window/door trim use Owens-Corning Architectural
Trim, color Grey.
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430
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Fireplace - Geat room
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Lennox brand, model Superior D-800.
Opening 40" wide. Direct
vent to side of house. Electronic
ignition. With Heater blower.
Gas-line, glass doors, grate, and 30" gas logs included.
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Hearth
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Raised up to 14" (height to be determined
by owner). Tile covered.
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Facing
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Tile
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Mantle
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Maple trim per millwork item 620.
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430
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Fireplace: Basement
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Lennox brand, model Superior D-800.
Opening 40" wide. Direct
vent to side of house. Electronic
ignition. With Heater blower.
Gas-line, glass doors, grate, and 30" gas logs included.
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Hearth
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Raised up to 14" (height to be determined
by owner). Tile covered.
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Facing
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Tile
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Mantle
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Painted wood.
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440
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Dryvit
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None.
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Lamp Post
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No.
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450
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Windows
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Windows: Vinyl;
Milgard brand "Classic Vinyl".
Locations and sizes per attached plan.
Low-E (Cardinal LoE2). Argon
filled. White.
No grids. Screens
on all operable windows. Lifetime
warranty.
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Window Sizes
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Size of all windows per plans.
Most main floor windows have a 1'
6" inch high
transom window above the 5' or 4' window.
All transom windows have flat top, unless noted otherwise (some
have arch tops). Tops of
transom windows are 8' 2" above floor;
tops of windows without transoms are 6' 8" above flooor
(exception: top of the
window in the stairway is 7' 2" above main floor level)
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Dormer Window
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Over stairs:
5' wide x 2' high, arch top. May
not appear in plans.
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Door transom windows:
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Front door has a 6' wide transom window,
arch-top. French doors in
Dining Room have a transom window, arch top.
All other glass doors on the main floor have a 1' 6" transom
window, flat-top.
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Grids
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None, on any windows.
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Mater Bath
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Clear windows, not obscure.
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Low E
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Yes.
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450
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Sidelights
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Front door sidelights. See item 456.
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451
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Skylights
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If any skylights are shown in the attached plan:
Velux brand, FS model; Double glazed glass;
Low-E.
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456
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Front Door
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Peachtree
brand; Style: Newport II
Regal; Low-E
coating; argon-filled; 36"
wide plus two 14" sidelights; 6' 8" high; Transom window above.
Painted. Lifetime
warranty. Part numbers:
EL460REG transom;
sidelights: 14"
N15REG; door: 36"
N97REG. No screen.
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Door sill
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Chrome
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457
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Other Exterior Doors
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See "Exterior Glass doors" below.
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Sills
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Chrome
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Hinges/HW
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Brass, 3-hinge
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Exterior Glass Doors
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All exterior doors, except front door:
Peachtree brand, Citadel model.
No grid; Low-E
coating; Argon filled. Tempered
glass; Painted white. Lifetime warranty. Screens
on sliders; no screens on hinged doors.
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460
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Garage Doors
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One 16' x 8'
insulated steel.
One 9' x 8' insulated
steel. One
6' x 7' insulated steel (only if golf cart garage is in the
attached floorplan). Brand:
Clopay. Model 4300. Windows: sunburst
pattern windows in top row of panels (all 3 garage doors). All doors will
have keyed double lock bar locks, all keyed alike.
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Paint Color
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White.
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Gar. Door Opener
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One opener for the 16' door.
Two remote controls.
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Ext. Digital Code pad
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Yes
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Garage Interior
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Sheetrock
complete. Paint: no.
Insulate: See item
465.
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Garage Interior Doors
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Steel, solid-core fire door.
Six-panel. Auto-close. 1-3/4"
thick. 20 minute fire
rating. Size per plans.
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465
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Insulation
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Batt
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All insulation is batt, not blown.
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Ceiling
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R-38
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Exterior Walls
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R-19 (includes furred walls between basement and
foundation walls)
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Under floors
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Cantilevered overhangs: R-30
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Garage: Warm walls
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R-19
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Garage: Ceiling and cold walls
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None.
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Basement Ceiling
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None.
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470
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Siding: Front
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None.
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Siding: Sides and back
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Cementous Fiberboard. Hardiboard brand.
Style: Colonial Roughsawn. 6-3/4"
exposure (8" total width). Factory pre-primed.
50-year warranty.
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Building Wrap
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Tyvek or equal.
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Dryvit Color
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None.
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Exterior Trim
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The exterior trim (fascia, frieze, window trim,
corner trim) is identical to that shown in plan 2223 dated 3-8-00.
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Facia
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Eave fascia: 1"x8" fascia board with
1"x3" fascia trim.
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Soffit
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Eave Soffit and frieze: Enclosed soffit.
2"x4" frieze board.
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Window Trim, Exterior
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1"x4"
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Door Trim, Exterior
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1" x 4"
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Trim Band
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1"x4" and 2"x8" trim band
around house at main floorline.
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Corner Trim, Exterior
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1"x4" trim board
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Paint
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See item 660.
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480
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Deck
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Trex brand
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Deck Size
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Per plans
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Plank size
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2" x 6"
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Deck Rail
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Tempered glass
(clear) panels, 36" high.
Rails, posts, trim, etc to
be Trex.
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Deck Steps
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Yes. 42"
wide. Rise 7-1/2"
Run 10". Landings, if necessary, included. If two stairs are shown on attached plan, owner will select
one of the two locations later, without a price increase.
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Deck Color
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"Natural"
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520
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Electrical
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Wiring
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Copper. Non-metal
sheathing (romex).
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Switch & outlet plate color
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Ivory.
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Switch style
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Paddle (also called rocker or decora) style.
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Prewire Phone
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Category 5 wiring (four pairs of conductors).
Hub-and-spoke layout (also called "star" layout) not
daisy chain . Hub in Utility
room. Up to four wall plates
per floor. Two cat-5 wires run from hub to each wall plate: one wire for
phones, the other for computer network.
Each wall plate has one RJ-11 jack (standard six-pin phone jack)
and one RJ-45 jack (standard 8-pin computer network jack).
Jack locations shown on attached plan.
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Prewire Cable TV
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RG6 cabling.
Up to four TV jacks on each floor.
Jack locations shown on attached plan.
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Range Wiring
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None.
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Service
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200 amp underground
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Basement
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Separate 100 amp 40 circuit subpanel in
basement.
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Outlet, light, and switch locations
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Attached plan shows location and types of
switches, light fixtures, and outlets.
Not all switches and outlets are shown, due to space limitations:
for example, the garbage disposal switch is not shown,
separate switches for bath fan and lights are not shown,
and separate switches for ceiling fan and its lights are not shown.
Requirements in this specification have precedence over the plan.
Locations and quantity of outlets can be changed by electrician to
meet code or improve efficiency. Switch
locations can be changed if the electrician desires, but owner must be
notfied. Changes to switch types (dimmer, 3-way) require change
order.
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Kitchen Outlets
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Outlets
spaced every 4', or closer, in kitchen.
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Exterior lights
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Exterior lights will be either wall mounted or
recessed in porch ceiling.
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Exterior lights on posts
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None
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Ceiling fans:
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Separate
switches for fan and light. Light
on dimmer. Fan on
variable-speed switch. Some
ceiling fan lights (not fans) may be on 3-way switches (one 3-way on/off
and one 3-way dimmer).
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Doorbell
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Yes
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Smoke detectors
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Electrically operated with battery backup.
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Dimmer Switches
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Dimmer switches are vertical-slide dimmer
switches (with separate on/off swich built-in).
Some may be 3-way dimmer switches.
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3-way switches
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Some light circuits have 3-way switches.
Some of these may include a dimmer switch, in which case one switch
is an 3-way on/off and the other switch is a 3-way dimmer.
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Walls Switches
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Pantry, linen, and walk-in-closets have wall
switches
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Exterior weatherproof outlets:
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Up to six (two in front; two on each level in
back).
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Refrigerator Outlet
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Refrigerator outlet on dedicated circuit.
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Attic
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One porcelain fixture with wall switch.
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Garage Lights
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Will be flourescent lights.
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Baths Exhaust Fans
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Panasonic brand, WhisperLite model.
Fan and lights switched separately.
Fans vented to outside. Fan
switch is a timer. Material costs taken from light fixture allowance.
Use 70 CFM (model
FV-07VQL) in all locations, except use 110 CFM (model FV-11VQL) in master
tub/shower room.
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Wiring to deck
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6 gauge wire (3 conductor plus ground) to empty
junction box on exterior wall under deck. For possible future use, such as
hot tub. Not connected to
panel and no circuit breaker required.
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Low-voltage kitchen lights
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Low voltage (12V) halogen lighting system for
under-cabinet in kitchen. Tresco
brand. Profile
1" or less. Up to eight
20W halogen lights. 160W
transformer hidden (attic, garage, or utility room).
Material cost to be paid from light fixture allowance. Installation
included in overall house price.
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220V outlets
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Utility Room (dryer). Kitchen (wall oven).
AC.
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Alarm System wiring
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Alarm system wire (Category 5, UTP) installed in
walls. Contractor does not
have to supply or install any component of alarm system. Wires start in a
single empty junction box (hub) in utility room.
Wires go to up to four locations per floor (in ceiling corners, for
future motion detectors).
120V power wire supplied to the Utility Room junction box.
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525
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Light Fixtures
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Allowance
$3,000 for light fixtures. Allowance
covers light fixtures, ceiling fans, and bath fans. Labor, installation, switches, outlets, wiring, circuit
breakers, etc paid from overall house price.
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530
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Plumbing
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Pipes: DWV
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ABS or PVC.
Schedule 40.
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Pipes: water supply
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Copper, type L rigid pipe. Lead-free solder.
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530
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Plumbing - Kitchen
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Kitchen Sink
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Kohler "Brookfield" : model 5942
(self-rimming) or model 5898-4U (undercounter). Color Biscut (K96).
Located in island. Undermount
decision will be made after countertop material selected.
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Island Sink
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Only one sink in the kitchen.
See above.
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Kit. Faucet
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Kohler K-6352 "Avatar".
Deck mount single hole (don’t use the escutcheon).
Finish "polished nickel".
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Cabinets
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See item 650.
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530
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Utility Room
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Recessed box in wall for water supply and drain
pipes for washing machine.
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Utility Sink
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Mustee #10 deck mount fibergla |