12' x 12' Standard "Quick-Ship" Modular Building

Save costs, labor, and materials with modular construction. PortaFab's "Quick-Ship" modular units come as two, three, or four wall buildings created from your selection of either the OmniFlex steel or Series 300 aluminum stud framing systems.

[4-Wall Building]

12x12 3-wall modular building

[3-Wall Building]

12x12 2-wall modular building

[2-Wall Building]


Our complete prefab kits include everything needed for a basic modular inplant office. All models include the following:

  • Interchangeable wall panels (Thermal or Fire & Sound panels)
  • Acoustical drop ceiling
  • Steel roof deck
  • Framing: Wiring posts, corner posts, top and bottom channels
  • Connecting hardware
  • Pre-hung steel door with or without window

12' x 12' "Quick-Ship" Building Specifications

Product Specifications
Width (Feet) 12' 4 1/2"
Depth (Feet) 12' 4 1/2"
Height (Feet) 8' or 9'
Color / Finish Champagne, Grey, White
Approval / Regulations Thermal Panel: R-13, STC-24
Fire & Sound Panel: R-11, STC-31 (Class A per ASTM-E84)
Assembly Unassembled
Clearance Height Interior 7' 6"
Door Size 3' x 7'
Door Style Swing
Frame Construction Painted Steel
Light Fixtures 2 (based on 4-wall building configuration)
Outlets 4 (based on 4-wall building configuration)
Limited Warranty 1 Year
Type 4-Wall, 3-Wall or 2-Wall
Wall Construction Standard thermal panels consist of 1/4" vinyl hardboard on polystyrene core or fire and sound (F&S) panels with 1/2" vinyl gypsum on polystyrene core
Wall Thickness (Inches) 3

Additional Specifications:

  • Wiring Posts - OmniFlex steel (in champagne, grey, or white).
  • Non-progressive system.
  • Galvanized floor track.
  • Vinyl-base interior and exterior.

Review the steps for purchasing a modular building to learn more about how to choose the prefabricated building that is right for your business.


Options for "Quick-Ship" Units

Doors and Hardware
Steel Door Assembly
  • 3070 - 20 Gauge Steel Door Assembly - Flush
  • 6070 - 20 Gauge Steel Double Door Assembly - Flush
  • 1/4" Clear Tempered Safety Glass
  • Aluminum Threshold - 3"
  • Lever Lockset (standard duty)
Door Louver
  • Door Louver - 16" x 12"
Msc Hardware
  • Door Closer
  • Kickplates


Window Assemblies
Fixed Window
  • 4' or 2' nominal width x 3' nominal height glazed with 1/4 clear tempered safety glass.
Sliding Window
  • 3' x 3' nominal dimensions, installed in wall panel glazed with 1/8" clear tempered safety glass.


Roof and Ceiling Systems
Acoustical Ceiling
  • 2' x 4' x 5/8" mineral fiberboard with white steel grid system
Ceiling Insulation
  • 6" Fiberglass (R-19) (144 SF per roll)
Roof Deck
  • Up to 12' length
  • 16' long dust cover support beam
  • 20' long dust cover support beam
  • Dust cover support angle - 12' (must be used along all existing building walls)


Climate Control
HVAC Units
  • 11,600 btu cool/11,300 btu heat (230V)
Air Conditioning Units
  • 7,900 btu (115V)
Baseboard Heaters
  • 1,500 watt - 120V
Framed Cutouts
  • Installed or material only (size not to exceed 12 l.f.)


Electrical Components
Light Fixture
  • 2' x 4' flourescent (4-bulb) fixture, T8 ballast (bulbs not included)
Outlet or Switch
  • Outlet without Wiring (15V)
  • Switch without wiring (15V)
Circuit Breaker Boxes
  • 4-Space
  • 6-Space
  • 10-Space
Exhaust Fan
  • 270 cfm ceiling mounted exhaust fan - Includes fan, duct kit, and switch (louver in door is recommended for maximum air flow)

Modular Electric Packages

For even greater convenience, offices can be outfitted with a pre-engineered modular wiring system. This system significantly reduces time and costs associated with new in-plant office installations by providing all the necessary electrical hardware in a convenient and pre-engineered “snap together” wiring system.  Learn more about our Modular Wiring Package.

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Locally-sourced installation due to our extensive dealer network.

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