Beauty Shot

Mountain Brook

A desirable country escape wherever you choose to enjoy it.

An excellent addition to any property, the Mountain Brook cabin styles are a cottager's dream come true. The overhanging gable creates a funky loft on the inside, helpful for storage or extra sleeping space. On the outside, it shelters the very charming porch from the sun's rays on hot days and rain on wet ones. Add a dormer to show off this detail to its best effect. Don't forget to consider our Canexel cabin siding to add even greater durability. Check out more Mountain Brook looks in our favourites!

Swipe to browse photos or tap for pricing/details.


This authentic prefab Mountain Brook cabin is the ultimate cottager’s retreat. The overhanging gable roof creates a funky loft on the inside, perfect for storage or extra sleeping space. And on the outside it shelters a very charming porch from the sun’s rays.

Learn more on the details you need to know about our prefab Mountain Brook cabin in these style tabs.

Mountain Brook cabin


- Spacious roof creates handy loft space.
- Standard eight-foot walls; plenty of storage and headroom.
- • Cedar porch adds charm and style.
- Solidly built with Spruce SPF 2 x 4 framing materials (2 x 6 over 108 sq. ft,) and beautiful Western red cedar channel siding and trim.
- Optional maintenance free Canexel siding in a variety of vibrant colours.

Popular options:
  • Variety of Dormer styles
  • Vinyl windows and doors
  • Extra overhang and wall height
  • Partitioning walls
  • Steeper roof pitch
  • Finished Pine floors
  • Enhanced Siding Package (ESP) for protection against moisture & the elements
  • Single and double cedar French doors

Floor plans

Below are a few sample floorplans that shows the popular options associated with Mountain Brook cabins.
For more ideas and photos please visit Interiors under inspiration.

  • Mountain Brook cabin Floor Plan 1
  • Mountain Brook cabin Floor Plan 2
Popular cabin floor configurations

Try this Floor Planner Tool to design your own Mountain Brook space and share as you like
You may also download graph paper and print out a few sheets to help designing your own space!

Available prefab Mountain Brook cabin sizes

The Mountain Brook cabin is offered in sizes ranging from 168 sq.ft to 720 sq.ft

If you cannot find your size please contact us.


Level of Difficulty:

The prefab Mountain Brook cabin building includes easy-to-follow instructions, diagrams, and assembly videos that will help you through the process.
Below is a series of photos showing one of our Mountain Brook building being assembled.

  • Foundation for Mountain Brook cabin

    Foundation for a Mountain Brook cabin

  • Roof framing Mountain Brook cabin

    Roof framing install

  • Completed Mountain Brook cabin

    Completed Mountain Brook cabin (click image for more details)

Hiring a contractor

Our Mountain Brook style buildings are relatively straightforward to assemble, however, if you feel that you may want some assistance check out our hire a contractor page.

Hiring a contractor Mountain Brook cabin
Contractor working on a roof

details & specs

Mountain Brook Prefab Cabin Dimensions

10' 6' - 0" 4' - 0" 12' - 4 5/8" 8' - 1 1/8" 3' - 7 7/8"
12' 8' - 0" 4' - 0" 13' - 0" 8' - 1 1/8" 4' - 3 1/4"
14' 10' - 0" 4' - 0" 13' - 7 1/2" 8' - 1 1/8" 4' - 10 3/4"
16' 12' - 0" 4' - 0" 14' - 3 1/4" 8' - 1 1/8" 5' - 6 1/2"
18' 14' - 0" 4' - 0" 15' - 0 1/2" 8' - 1 1/8" 6' - 2"
20' 16' - 0" 4' - 0" 15' - 7 7/8" 8' - 1 1/8" 6' - 9 3/8"
22' 18' - 0" 4' - 0" 16' - 3 3/8" 8' - 1 1/8" 7' - 4 7/8"
24' 20' - 0" 4' - 0" 16' - 10 7/8" 8' - 1 1/8" 8' - 0 3/8"
26' 22' - 0" 4' - 0" 17' - 6 1/4" 8' - 1 1/8" 8' - 7 3/4"
28' 24' - 0" 4' - 0" 18' - 2 1/8" 8' - 1 1/8" 9' - 3 5/8"

Our measurements (i.e. 12ft. x 20ft.) are taken from the outside of the wall framing, therefore, they don't include the siding, and/or sheathing.

For true interior measurements, subtract the thickness of the wall framing; 3 ½” for 2x4 walls, and 5 ½” for 2x6 walls. Note: 2 x 4 is actually 1 ½” x 3 ½” and 2 x 6 is actually 1 ½” x 5 ½” due to the properties of "finished” lumber.

Wall Plan

Mountain Brook wall plan detail

Our cabin walls are assembled with 2x4 spruce wall studs (2x6 over 100 sq. ft.) for added strength and durability.

For true exterior dimensions, add the siding, sheathing (if applicable), and corner trim pieces. The Canexel siding is 3/8" thick, the cedar siding is 3/4" thick and the log siding is 1 1/2" thick. The wall sheathing varies from 7/16” to 3/4”. The corner trim is 3/4".

If you have any other questions pertaining to the size of your Mountain Brook cabin building, please do not hesitate to ask us, we are here to help.

Roof Framing Plan

Mountain Brook cabins are built with gable roofs, featuring a continuous ridge with two sides sloping from the center toward the walls. This roof design makes it ideal for those looking for extra headroom to add a loft studio for extra storage or living space.

Gable roofs are much easier to frame, sheath, and finish, giving the vertical wall component of a gable roof its style, known as “gable ends”.

Ventilation is easy to install. Due to its geometry and access to gable ends, roof vents can be placed on the gable ends rather than the roof itself. Consult with your contractor or roofing company, for the most effective ventilation system for your roof.

Roof framing drawing of a Mountain Brook building

Overhang Detail

Soffits are the cedar trim pieces that are attached to the underside of the rafter ends. Fascia is typically the cedar 1x4 that’s used to cover the rafter tips and provide a nice straight level line for the bottom of your roof.

Mountain Brook roof overhang detail


Although the Mountain Brook cabin is well suited for a cottage patio stone or traditional patio stone foundation, depending on terrain, gradient or application, you may require more advanced foundation options. For example, Sonotube footings are ideal for situations where you’re faced with steep grades or rocky terrain, whereas concrete pad is ideal for flatter surfaces and larger cabins.

Visit our Foundations page for more details.

Mountain Brook foundation


All Summerwood prefabricated cabins are engineered to last a lifetime. We buy the very best materials on the market, chosen for their aesthetic appeal, durability, and environmental acceptance. Our cabins are designed with style and longevity in mind. The materials they are comprised of contribute greatly to these ideals.

item material dimension notes
runners pressure treated 2x6 underside of floor framing
joists pressure treated 2x6 - 2x8 16" on center
joists (porch) pressure treated 2x4 - 2x6 16" on center
sheathing spruce 48" x 96" x 5/8" tongue & groove
floor boards cedar 2x6 N/A
material upgrades
floor insulation expanded polystyrene 3 1/2" & 5 1/2" within floor cavities
pine flooring white pine 1x6 tongue & groove
item material dimension notes
wall plates spruce 2x4 - 2x6 bottom, top, double top
wall studs spruce 2x4 - 2x6 16" on center
siding cedar channel 1x8 standard horizontal siding
material upgrades
clear t&g cedar siding canexel 1x8 studs & plates
interior cedar siding cedar 2x4 - 2x6 studs & plates
esu1b 1/2" ply + typar n/a wall sheathing & building wrap
wall insulation expanded polystyrene 3 1/2" & 5 1/2" within wall cavities
item material dimension notes
ceiling joists spruce 2x4 - 2x10 ceiling framing
rafters spruce 2x4 - 2x10 24" on center maximum
ridge board spruce 2x6 - 2x10 n/a
sheathing osb 48" x 96" x 7/16" n/a
material upgrades
cedar roof boards cedar 1x6 - 1x8 n/a
cedar rafters cedar 2x6 - 2x12 n/a
roof insulation expanded polystyrene 3 1/2" & 5 1/2" on roof surface
item material dimension notes
cedar trim cedar 1x6 - 1x8 corners, soffit, fascia
material upgrades
maintenance free trim versatex 1x4 - 1x8 corners, soffit, fascia

Popular upgrades

Enhanced Siding Package

If you are thinking of adding insulation to your building, consider adding one of our "enhanced siding packages". It's a layer of sheathing (OSB or plywood) and house wrap (Typar and optional HomeSlicker) that provides a moisture barrier to your structure. The ESP upgrade also provides additional barrier against the elements allowing the Moutanin Brook to be a four season building.

Enhanced siding package upgrade

Insulation Materials

When deciding to insulate your Mountain Brook cabin you have a few options to choose from. Summerwood uses foam boards insulation for its structures. This type of insulation can be used to insulate any part of the cabin from floor to roof. Other commonly used styles of insulation are Batts and Spray foam insulation. Batts are easy to handle fiberglass sections while Spray foam is slightly more advanced and ideal for sealing around awkward spaces and smaller cracks. With these three options you are sure to have an all year round cabin.

Loft Space

If you choose to add loft space, there are a few ways of creating the space you need. One popular option is to add Dormers. This feature gives you the ability to increase headroom without changing the height of your building. The other alternative is to get a steeper roof by increasing your roof pitch in the loft space. Instead of changing your roof design, you can also increase the wall height of your Mountain Brook cabin, which will allow you to lower the loft floor to increase head room above.

One more thing to consider is how to access your loft and if you have enough space to place a ladder. You have the option of getting a lean-to-ladder or a drop-down ladder. With these options you need to ensure that ladders are positioned in line with the direction of the roof framing to allow for easy access to your loft.

Loft space in a Cabin with a Dormer

Interior Cedar Siding and Framing

The Mountain Brook style allows for a wide array of interior finishes. Our cedar siding or framing interior upgrade can be incorporated on the walls and/or ceiling, providing a warm rustic feel.

Cedar siding choices for a Mountain Brook building

Extra Overhang

The Mountain Brook style roof features a 6” overhang where the roof meets the walls. The overhang is trimmed out with a soffit and fascia board. Extra overhang is offered in increments of 6” [i.e. +6 (12”), +12 (18”)].

Mountain Brook extra overhang drawing & building


Once your Mountain Brook cabin is completed, there are a few things you can do on the inside to add to the comfort and enjoyment of your new Summerwood building.

Please see Interior Finishing under Advice for more information


If you plan to heat your Mountain Brook cabin, insulation may be added either at purchase or after-the-fact if you decide to do it later. The walls and roof are constructed in such a way that adding insulation either as an option or on your own is quite simple to do. If you’re thinking of using your cabin all year round, then insulating it is the way to go.

Insulation for a Mountain Brook cabin


The inside of our cabin styles are left exposed to easily accommodate wiring for lighting, outlets, heating equipment, whatever you have in mind. Once the installation is complete and before finishing your interior, simply have an electrician come and do his thing.

Electrical configuration option


Provided you have a water source nearby, your Mountain Brook cabin pipes can be run for sinks and taps. If you have something a little more elaborate in mind like a shower or toilet, best to make sure it is coordinated with the concrete pad and installation of the cabin.

Mountain Brook cabin bathroom configuration


Visit "options and accessories" for detail and pricing of our accessories.

Find below pricing for all of the Mountain Brook sizes that we have built so far. Don't see your size? Ask us and we will provide you with a quote.

Note that pricing below is for the base kit only. Doors, windows, and other options are à la cart so that you can customize to your hearts content.

SM Mountain Brook
Cabins (<70 sq.ft.)

All prices in $USD
Small Mountain Brook
Cabins, price list
kit size pre-cut pre-assembled

MD Mountain Brook
Cabins ( 70 - 100 sq.ft.)

All prices in $USD
Medium Mountain Brook
Cabins, price list
kit size pre-cut pre-assembled

LG Mountain Brook
Cabins (100 - 130 sq.ft)

All prices in $USD
Large Mountain Brook
Cabins, price list
kit size pre-cut pre-assembled

XLG Mountain Brook
Cabins ( >130 sq.ft.)

All prices in $USD
Medium Mountain Brook
Cabins, price list
kit size pre-cut pre-assembled
12ft.x12ft. $15,595 $10,916 $18,295 $12,806
12ft.x14ft. $16,995 $11,896 $20,195 $14,136
12ft.x16ft. $19,095 $13,366 $23,095 $16,166
12ft.x18ft. $21,395 $14,976 $24,995 $17,496
14ft.x16ft. $22,495 $15,746 $25,695 $17,986
12ft.x20ft. $23,395 $16,376 $27,995 $19,596
16ft.x16ft. $24,695 $17,286 $29,295 $20,506
14ft.x20ft. $27,295 $19,106 $31,795 $22,256
16ft.x18ft. $27,895 $19,526 $32,595 $22,816
12ft.x24ft. $27,895 $19,526 $32,695 $22,886
16ft.x20ft. $29,995 $20,996 $35,295 $24,706
14ft.x24ft. $31,595 $22,116 $36,895 $25,826
16ft.x22ft. $32,795 $22,956 $38,895 $27,226
20ft.x18ft. $32,695 $22,886 $39,595 $27,716
18ft.x20ft. $33,695 $23,586 $39,595 $27,716
14ft.x26ft. $34,295 $24,006 $39,995 $27,996
16ft.x24ft. $35,495 $24,846 $41,995 $29,396
18ft.x22ft. $36,995 $25,896 $43,295 $30,306
20ft.x20ft. $37,195 $26,036 $43,695 $30,586
24ft.x18ft. $39,895 $27,926 $46,995 $32,896
18ft.x24ft. $39,895 $27,926 $46,995 $32,896
21ft.x21ft. $40,795 $28,556 $47,995 $33,596
14ft.x34ft. $44,095 $30,866 $51,795 $36,256
16ft.x30ft. $44,395 $31,076 $51,895 $36,326
28ft.x18ft. $46,595 $32,616 $54,595 $38,216
16ft.x32ft. $47,295 $33,106 $55,495 $38,846
18ft.x30ft. $49,895 $34,926 $58,295 $40,806
20ft.x28ft. $53,795 $37,656 $62,895 $44,026
24ft.x24ft. $55,195 $38,636 $64,295 $45,006
20ft.x30ft. $58,095 $40,666 $66,995 $46,896
24ft.x26ft. $59,695 $41,786 $68,995 $48,296
22ft.x32ft. $67,995 $47,596 $77,895 $54,526
24ft.x30ft. $70,095 $49,066 $79,695 $55,786
23ft.x33ft. $80,195 $56,136 $91,295 $63,906
25ft.x33ft. $83,695 $58,586 $95,295 $66,706
24ft.x36ft. $83,895 $58,726 $95,495 $66,846

Custom Designs

Summerwood will take your custom design and make it your own. If you have something different in mind, talk to one of our designers about bringing it to life.

get a professional involved

Our seasoned designers would love to help you find your ideal design.
We're just a phone call away.

Contact us