Our Standard Specifications for
Prefab Modular Single-Family Residences
CURRENT APPLICABLE BUILDING CODES
STATE: CALIFORNIA
2025 California Building Administrative Code
2025 California Building Code, Title 24
2025 California Residential Code
2025 California Electrical Code
2025 California Mechanical Code
2025 California Plumbing Code
2025 California Fire Code
2025 California Green Building Standards Code
EXTERIOR
SIDING
Standard: Allura Fiber Cement for High-Wildfire Areas - 8” Reveal
Non-Wildfire Area Choices:
LP SmartSide, Horizontal Lap, Cedar-grain with 7” Reveal
Vertical Siding Where Batts Can be Installed On-Site
Siding Note:
Siding is installed in the factory on the long ends of the modules and whenever possible. It is not installed on the short ends of the modules or the bottom 3-4 rows, or other areas where structural connections are required prior to the installation of siding (ship loose siding & materials to be installed by separate contract by the on-site contractor)
SIDING UNDERLAYMENT
Tyvek Residential HomeWrap
TRIM
3.5”
FASCIA
5.5”
SOFFIT
LP Smartside 8” Groove Panel
WINDOWS
Horizontal Sliding Vinyl, Low-E, Dual-Glazed, with Argon Gas
WINDOW TYPE
PlyGem, or Similar
WINDOW GRIDS
Standard: No Grids
ROOFING
GAF Timberline HD Class-A Composition Shingles
(Standard: Limited Lifetime Transferable Warranty)
SHINGLE NOTE
Shingles will be provided only if the roof can be completed in factory
ROOFING UNDERLAYMENT
30-LB or 15-LB Felt, Two Layers
WUI HIGH FIRE SPECS
Upgrade: Wildland Urban Interface High-Fire Hazard Zone Specifications, as Required by CalFire or if Requested by Any Client
FRONT DOOR
36” x 80” Fiberglass Entry Door
FRONT DOOR HARDWARE
Satin Nickel Exterior Hardware with Thumb-Open & Deadbolt
REAR DOOR (IF APPLICABLE)
32” x 80” 3-Panel Flat Craftsman Fiberglass Painted Exterior Door
REAR DOOR HARDWARE
Satin Nickel, Lever Handle with Deadbolt
CRAWL SPACE ACCESS
By Site Contractor, in Exterior of Foundation Wall
INTERIOR
DRYWALL FINISH
Drywall Hung, Seams Fire-Taped Behind Cabinets & Any Covered Areas. Texture, Finish & All Interior Paint by Site Contractor (Including Taping Seams & Mudding)
DRYWALL CORNERS
Rounded Throughout
INTERIOR DOORS
White Raised 6-Panel, Hollow-Core (standard)
INTERIOR DOOR HARDWARE
Knobs & Handles: Brushed Nickel
DOOR/WINDOW TRIM
Craftsman Package: 2.75” Sides with 3.5” Header Piece
BASEBOARDS
5.5” Square
CLOSET SHELVING
11.25” with Hanger Rod Below
WINDOW SILLS
Craftsman Sill with Trim & Apron
CABINETS
European-Style Raised-Panel or Recessed-Panel Cabinetry with Concealed Hinges & hardware, 2” Crown Moulding on Top
5 Styles & Colors to Choose from
All Hardwood Face Frames & Doors with Solid Plywood Boxes
CABINET HEIGHT
40” Hanging Wall Cabinets
DOORS & DRAWERS
Hardwood with Soft Close
HARDWARE
Knobs & Handles: Brushed Nickel
COUNTERTOPS
Granite in Kitchen & All Bathrooms
BACKSPLASHES
4” Granite
KITCHEN SINK
9” Deep Stainless Steel Single Bowl
KITCHEN FAUCET
Single Lever Gooseneck with Sprayer in Brushed Nickel
GARBAGE DISPOSAL
½ HP with Continuous Feed: InSinkErator
REFRIGERATOR
Plumbed for Ice-maker: Refrigerator By Client/Site Contractor
ATTIC ACCESS
Per Plan
APPLIANCES
RANGE
Prepped for Electric Range (Range Not Included)
RANGE VENTILATION
Electric Hood
DISHWASHER CUT-OUT
Cut-out for Dishwasher Provided if Requested
REFRIGERATOR PREP
Plumbed for Ice-maker: Refrigerator By Client/Site Contractor
RANGE HOOD
Vent Prep Only
WASHER & DRYER
None (Standard)
OR: OMIT ALL
Option to Omit Hood & All Prep Work
MASTER BATHROOM
SHOWER
Composite Shower Pan with Concrete Backer Board Prep for Tile (Tile by Others)
TUB
Alcove Tub with Composite Panel Walls
Substitute: Concrete Backer Board Prep for Tile Instead of Composite Wall Panels (No Additional Charge)
WATER SAVING FIXTURES
All Fixtures are EPA “WaterSense” and CalGreen Certified
TUB/SHOWER FAUCETS
Single Lever Diverter: Brushed Nickel
TUB FAUCETS
Dual-Handle: Brushed Nickel
SHOWER HEAD HEIGHT
7’, or Height as Requested
LAVY
Dual China Sink with Overflow
LAVY FAUCET
Single-Handle Lavy Faucet: Brushed Nickel
WATER CLOSET
Elongated, Dual-Flush
MIRROR
Beveled Edge, Above Sink
MEDICINE CABINET
Recessed
HARDWARE
24” Towel Bar, Tissue Holder, & Towel Ring in Brushed Nickel
CABINETS
European-Style Raised-Panel or Recessed-Panel Cabinetry with Concealed Hinges & Hardware
VENTILATION
Panasonic® Whisper Green Auto-on Humidistat Ventilation Fans
ELECTRICAL
MAIN PANEL
200 AMP Unmetered Electrical Panel
EV CAR PREP
Breaker for Electric Car
METER PANEL OPTION
Upgrade: Meter Base Panel on Exterior Wall
SWITCHES
Leviton Decora Switches & Outlets
LIGHT BULBS
LED Integrated Bulbs in All Lighting Fixtures
EXTERIOR ENTRY LIGHTS
One (1) LED Wall Light per Exterior Door
KITCHEN AREA LIGHTS
Five or Six (5-6) LED Recessed Lights, per plan
DINING ROOM
Junction Box for a Chandelier with Blocking, Chandelier by Site Contractor
USB RECEPTACLE
One (1) in Kitchen Area to charge electronic devices
BATHROOM VANITY LIGHT
2 or 3-Light, Brushed Nickel Based on Vanity Size, on Occupancy Sensor
BEDROOM LIGHTS
Ceiling Mounted Flush Light with Brushed Nickel Trim
FANS
Prep for Fan, Fans by Site Contractor
DATA CLOSET PREP
One (1) Faceplate with Conduit Stubbed to the Bottom of Floor Joists, No Wire
DRYER HOOKUP
Recessed Box with Dedicated Vent to Outside in Floor System Rim
EXTERIOR OUTLETS
Two (2) GFCI with All-Weather Covers
SAFETY
Recessed ARC Fault Breakers Throughout Home
DETECTORS
Hard-Wired Smoke & Carbon Monoxide Detectors per Code
PLUMBING
SHUT OFF VALVES
Angle-Stops at all Vanities & Toilets; Whole-house Shutoff at Main Inlet
HOT WATER TANK
Rheem® Prestige 50 Gallon Electric EcoNet Enabled Hybrid
Exterior Access:
Upgrade: Exterior Door to be Painted the Same Color as Siding On-Site by Others
WATER SUPPLY PLUMBING
PEX Piping: Strong, Flexible, Quiet, & Corrosion-Resistant
WASTE PLUMBING
ABS Piping
GAS LINES
Gas Piping Installed On-Site by General Contractor, If Applicable
HOSE BIBS
Two (2) Included on Exterior
MECHANICAL
AIR HANDLER
Fan Coil Unit for Heat Pump (Electric)
DUCT SYSTEM
Insulated per Title 24 & Mechanical Plans
VENTILATION of WHOLE HOUSE
Insulated per Title-24 & Mechanical Plans
VENTILATION of BATHS/UTILITY
Insulated per Title-24 & Mechanical Plans
AIR RETURN
Ducted Air Returns
EXTERIOR UNIT
Condensing Unit for Heat Pump on Pad Outside of Home by Site Contractor
MINI-SPLIT HEAT PUMP
Engineered Item per Plans, Ducted or Ductless (Upgrade)
GENERAL
FLOORING OF WET AREAS
Standard: None
FLOORING OF DRY AREAS
Standard: None
ALL FLOORING
Supplied & Installed by Site Contractor
TILE PREP
Upgrade: Backer-Board Prep for Tile Floors
PAINT
All Interior & Exterior Paint to be Provided & Applied by Site Contractor
DÉCOR
WINDOW COVERINGS
None
STRUCTURAL
FLOOR JOIST
2X12 Double Rims with Floor Trusses or per Plans
FLOOR DECKING
23/32 Tongue & Groove OSB
EXTERIOR WALLS
2X6: 16” On Center
WALL HEIGHT
9’ Standard
INTERIOR WALLS
Minimum: 2X4
ROOF PITCH & LOAD
4/12 Roof Pitch with Ridge Cap, 30 lb Roof Load, or per Plans
Upgrades: Steeper Roof Pitch or High Snow Load Roofs
ROOF TRUSSES
24” On Center with 7/16” OSB Roof Sheathing
EAVES & OVERHANGS
16” or per Plans
CEILING
Flat Throughout
FIRE SPRINKLERS
FIRE SPRINKLERS
Included: Plan Specific Engineered Design
ENERGY EFFICIENCY
INSULATION
EcoBatt® Formaldehyde-free Insulation From Knauf
Floor: R-30
Walls: R-19
Ceiling/Roof: R-38
Sill Seal with Vapor Barrier
COVERED PORCH
COVERED PORCH
Upgrade: Per PLAN if built in Factory
Deck Framing: Pressure Treated 2x
Decking: Composite
Square Baluster: Composite
Porch Columns: Craftsman style
Fiber Cement Ceiling with 2 Recessed LED Lights
DISCLAIMER
Specifications subject to change without notice prior to the signing of a complete order form