skip to Main Content
Stack Homes Model 320 Prefab Home.

Stack Homes / Stack Homes 320

Stack Homes Stack Homes 320 Prefab Home

The Stack Homes 320 is a 320 square foot modular unit designed to be combined with additional units to create additional living space. State and local codes may limit use as a stand alone ADU based on square footage minimums, check with your local building laws.

The unit is designed as a studio living unit, complete with galley kitchen with breakfast bar, half bath and built-in storage and closet space in the bedroom area, as well as an optional front deck.

Stack Homes Stack Homes 320 Features

  • Modular, steel-frame, SIP panel construction
  • Versatile, stackable design
  • High quality Western Window Systems glass sliding doors
  • High efficiency dual-pane windows
  • Open-concept spaces, 9-foot ceilings
  • Homes include cabinets and solid surface quartz counters
  • Homes include energy efficient fridge/freezer, cooktop, electric oven, and dishwasher
  • Mini-split HVAC unit included

Stack Homes 320 model prefab ADU or studio home.
Stack Homes 320 exterior with optional level deck

Stack Homes 320 view of bedroom and built-in cabinets.
Interior with built-in storage

Stack Homes 320 model prefab floor plan.
Stack Homes 320 floor plan

Stack Homes 320 Room Summary (

First Floor

Public Living Space

Private Living Space


Utility Space

Outdoor Space

Second Floor



Additional Rooms

Build Details

Roofing: EPDM membrane
Framing: SIPs & Steel
Shealthing: SIPs
Construction Notes:


Ceiling: (R | Type) 21
Wall: (R | Type) 21
Ceiling: (R | Type) R-40


Siding: Fiber Cement
Windows: Double-pane argon gas-filled windows throughout
Entry Doors:
Sliding / Terrace Doors:
Walls: Gypsum drywall
Floors: Hardwood
Interior Finish Notes:

Stack Homes Stack Homes 320 Package Includes


Cooktop: Electric cooktop
Kitchen Hood:
Refrigerator: Refrigerator & freezer
Washer / Dryer:


Countertops: Quartz countertops
Kitchen Cabinets: Included
Kitchen Sink: Stainless steel sink w/ garbage disposal
Kitchen Faucet: Matte black fixtures and faucets


Bath Sink: Porcelain sink with Moen faucet
Bath Faucet: Matte black fixtures and faucets
Toilet: Toilet w/septic or utility hookup
Bath Tub:


Water Heater:
HVAC Heating:
HVAC Cooling:
Ventilation System:
Solar Panels:
Alt Energy System:
Green Home Features:

Green Home Features

Green Home Features:
Alt Energy System:
Solar Panels: