Prefab Cottages & Garages
built for your lifestyle

Blue Spruce Prefab Cottage Exterior

Quality craftsmanship and hard work have held true through our long history and continue today to be the hallmarks of our companies

Founded in 2017, KB Prefab is the culmination of over 35 years of experience in the construction and renovation of residential and commercial buildings. KB Prefab is a subsidiary of KB Group of Companies, which include Kidd Bros Construction, KB Insulators, KB Basement Technologies, KB Exteriors, and now KB Prefab.

KB Prefab offers complete prefab garages and prefab cottages; our prefab buildings include the foundation and building construction at your location.

All KB Prefab garage kits are quoted complete with foundation, onsite installation, and include:

  • Energy-efficient windows
  • Insulated door(s)
  • Garage door(s)
  • Roofing (40 year shingles)
  • Soffit & Fascia

Prefab Cottages

Our Introductory Level

Premium line

Prefab Garages

Poplar – 16′ x 24′
Side Gable Roof Garage

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 5/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Poplar – 16′ x 24′
Gable Roof Garage

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 5/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Mulberry – 24′ x 24′
Side Gable Roof Garage

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 5/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Mulberry – 24′ x 24′
Gable Roof Garage

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 5/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Sycamore – 36′ x 26′
Gable Roof Garage

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 5/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Sycamore – 36′ x 26′
Side Gable Roof Garage

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 5/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Tamarac – 36′ x 26′
Side Gable Roof Garage with Timber Frame Overhang

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 5/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Maple – 28′ x 24′
Side Gable Roof Garage Kit

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 5/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Aspen – 30′ x 30′
Gable Roof Storage Loft Garage

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 8/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own

Chestnut – 36′ x 30′
Gable Roof Storage Loft Garage

  • KB GP, ECO-GP, or ECO+ Prefab Wall Panels
  • 1/2″ Spruce Plywood Roof Sheathing
  • 40-year Shingles and RhinoRoof® Ice & Water Shield
  • 8/12 Slope Prefab Roof Trusses
  • 1/2” “H” clips, and 2” x 6” Fascia Boards
  • 2″ x 10″ Headers over Doors & Windows, LVL Headers as needed
  • 36″ Door Entrance(s) – Northstar® Insulated 9-Light Door(s)
  • Northstar®48“ x 36” Vinyl Slider Windows
  • Clopay® Classic™ 9’ x 7’ Insulated Garage Door(s)
  • Tyvek® HomeWrap® as needed
  • 5.5” foam sill gasket, threaded rod anchors & epoxy Ardox nails & T50 3/8” staples
  • Add-ons available for Foundation, Exterior, and Electrical packages
Build Your Own