The G 120 Cabins

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The G120: Vacation Spot or Comfortable Tiny Home in MT & WY

Needing additional space? You’ll love the extra headroom in the loft, giving limitless creativity in design and use. To the right of the entrance, the great room and kitchen collide in order to create an airy, open space. Walk to the left and you’ll encounter a bathroom complete with a vanity, toilet, shower, and washer/dryer hookup. Take a few steps further and you’ll enter a bedroom with shelves and a closet. This prefab cabin in Montana is built to code, allowing you to sit back and relax.

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Standard Features


  • 4″x6″ Pressure treated base skids for foundation support (Cabins over 400 sq. ft. require footing).
  • 2″x10″ floor joist, 16″ on center, with R-30 minimal insulation.
  • 3/4″ tongue & groove OSB sub-floor.
  • COREtec® Pro Plus waterproof clip-n-lock luxury vinyl plank flooring.
  • Vinyl or clip-n-lock floor in bath.
  • Lofts have a 2″x6″ tongue & groove floor, log railing, and ladder.

Side Walls

  • 2″x6″ exterior walls with R-21 insulation.
  • Modular / Prefabricated
  • Wiring to meet or exceed code.
  • State inspection.

Roofing & Ceiling

  • 1″x6″ Knotty pine tongue & groove on the ceiling above rafters.
  • 2″x8′ Upper rafters 2′ on center with 4″ polyurethane, R-11 fiberglass for a total of R-38.
  • 7/16″ OSB roof sheeting
  • Synthetic roof underlay.
  • Painted metal roof (40-year warranty)
  • 4″x4″ Douglas fir rafters (exposed) on 4′ center with sunburst truss design.

Interior & Exterior

  • 1″x6″ tongue and groove pine interior with a clear sealer.
  • Double pane vinyl windows.
  • 7/16″ OSB under the siding.
  • Standard Siding Options:
  • Stained & sealed log1.
  • Stained & sealed cedar lap.
  • Stained & sealed board & batten.
  • Painted steel siding (40-year warranty)
  • LP® SmartSide® lap side with Diamond Kote® (30-year no-fade warranty)
  • Insulated full light door (with internal blinds).
  • PlygGem 200 series windows with Low-E 180 glass (clay color).

Design Your Own Cabin

Pick A Size

We offer a wide selection of sizes which allows you to pick the perfect-sized G 120 cabin for your backyard. Our size ranges are 14×32-14×54,16×32-16×54.


Select any color and material for the interior and exterior walls, and the roof of your cabin.


We use ProVia windows and doors for all of our cabin models.

additional packages

Cabins can be modified to accommodate your needs. Some additional options include propane gas, chimney kit, extra cabinets, washer and dryer hookups, additional closet space, and much more.

The G 120 Cabins Delivery

Each cabin is built according to Montana and Wyoming building codes. Keep in mind that additional permits may be required for delivery outside of Montana and Wyoming.
We offer secure and complimentary 50-mile shipping with any building that is custom or from inventory at our over 50 locations in six Northwestern states, including Montana, Idaho, Nebraska, South Dakota, Utah, and Wyoming.