3-Story Boulder Mountain Cabin house plan
2,141 sq ft
Heated Area
3 Bed / 3 Bath
Bedrooms / Baths
3-Stories
Stories
Car Port
Garage / Storage
From $1,495
Plan Price

I designed the Boulder Mountain Cabin as a 3-bedroom, 3-bath A-frame cabin that gives you 2,141 square feet across three stories with a carport. If you have ever dreamed of an A-frame on a mountain or lake lot, this plan takes that iconic silhouette and fills it with a layout that actually works for modern living.

The main floor holds 1,466 square feet with a vaulted great room that soars under the A-frame roofline, creating the kind of dramatic space that makes guests stop in their tracks. Nine-foot ceilings anchor the standard rooms while the vaulted spaces climb to their full potential. Upstairs, 675 square feet holds a bedroom with vaulted ceilings that opens to the living space below, giving the upper level a treehouse quality you will never get tired of. The lower level mirrors the main floor footprint with storage and a recreation room that gets full daylight on a sloping lot.

Outside, an A-framed porch, patio, open deck, and front porch give you outdoor options on every level. At 78 feet 1.5 inches wide by 54 feet 8 inches deep, this plan makes the most of sloping, narrow, mountain, and lake lots. The carport keeps vehicles covered without the cost of a full garage. This is an A-frame built for people who want to live in it, not just visit.

The Boulder Mountain Cabin plan is available for $1,495. For more mountain and cabin designs, explore Appalachia Mountain, Asheville Mountain, Appalachia Mountain II, and Camp Stone.

Plan Highlights

Sloped Lot Ready Designed for mountain and wooded terrain with natural grade changes
A-Framed Porch, Patio, Open Deck, Front Porch Deep covered porches for mountain air and panoramic views in every season
Open Great Room Vaulted great room with fireplace and open living at the center of the home
3-bedroom Plan Sleeping suites spread across floors for privacy and guest separation
Rustic Exterior Stone, timber, and board-and-batten accents that belong on a mountain site
Walkout Lower Level Lower level opens to grade for bonus living, storage, or recreation space

Specifications

Full Plan Details

Everything you and your builder need to evaluate this plan.

Living Area

Main Floor1,466 sq ft
Upper Floor675 sq ft
Lower Level1,466 sq ft
Total Heated2,141 sq ft
Width78' 1 1/2"
Depth54' 8"

House Features

Bedrooms3
Bathrooms3
Stories3
Additional SpaceStorage, Recreation Room
Outdoor SpacesA-Framed Porch, Patio, Open Deck, Front Porch
Garage / StorageCar Port
Lot Suitabilitysloping, narrow, mountain, lake

Construction

Exterior Framing2x4 or 2x6
Ceiling Height9', Vaulted Great Room, Vaulted Upper Bedroom
Roof Style12/12 Gable
Home StyleA-Frame, Cabin, Mountain

Floor Plans

Explore the Layout

Mountain living designed right — every level takes advantage of the terrain.

a-frame-cabin-open-living-floor-plansa-frame-cabin-open-to-below-floor-plansa-frame-cabin-open-living-floor-plan-walkout-basement

Max Fulbright, Lead Designer

Builder Insight

I designed the Boulder Mountain Cabin for the kind of site most house plans treat as a problem — a lot with real grade change. The walkout lower level, deep covered porches, and vertical massing are all intentional. Slope is an asset in the right design. This plan uses it.

— Max Fulbright · Lead Designer, 35+ years

Your Plan Set

What’s Included

Complete and build-ready. Everything your builder needs to break ground on your mountain or wooded property.

Elevations

Front, side, and rear elevations at ¼″ scale with exterior material call-outs and porch details.

Floor Plans

Dimensioned floor plans for all 3 levels with room labels and dimensions.

Foundation Plan

Foundation plan with footing and wall dimensions. Includes walkout lower level if applicable.

Roof Plan

Roof plan with pitches, ridges, valleys, and porch roof details for accurate bidding and construction.

Build Budget

Cost to Build Estimator

Ballpark construction estimates based on 2,141 sq ft and 2026 national averages. Actual costs vary by region, contractor, and finish level.

Budget Build

$321,150 – $374,675

$150 – $175 / sq ft

Basic finishes, standard fixtures, builder-grade materials. Functional and clean.

Mid-Range Build

$374,675 – $481,725

$175 – $225 / sq ft

Quality finishes, custom cabinets, upgraded fixtures. The sweet spot for most builders.

Premium Build

$481,725 – $642,300

$225 – $300 / sq ft

High-end finishes, premium materials, custom details throughout. Architect-quality construction.

Estimates do not include land, site prep, permits, or utility connections. Costs vary by region. Call (770) 301-4214 for a free build cost consultation.

Common Questions

Frequently Asked Questions

Each plan set includes dimensioned floor plans for all levels, front/side/rear elevations, foundation plan, and roof plan. Available as PDF ($1,495) or editable CAD files ($1,884).
Yes. Our in-house design team handles all modifications directly. Common changes include adjusting bedroom count, resizing rooms, changing exterior materials, or adapting for a specific lot. Typical turnaround is 2–4 weeks. Contact us at (770) 301-4214 for a free consultation.
Stock plans do not include a professional stamp. Many jurisdictions require a licensed engineer in your state to review and stamp the plans before permit submission. Check with your local building department before purchasing.

Ready to Build Your Mountain Retreat?

Whether you're ready to purchase or want to discuss modifications for your specific slope and site, our family is here to help.

Boulder Mountain Cabin
From $1,495
Buy Now