Open-Concept Floor Plan Remodels in Boise
Transform your compartmentalized Boise home into a bright, flowing living space. We remove walls, engineer structural beams, and redesign floor plans to create the open kitchen-living-dining layout that modern families demand — all permitted, engineered, and built to Idaho code.
An open-concept remodel removes interior walls to combine separate rooms — typically the kitchen, living room, and dining area — into one continuous, flowing space. Instead of walking through doorways between compartmentalized rooms, you get clear sight lines, shared natural light, and a layout that supports how Boise families actually live: cooking while supervising homework, entertaining guests without being isolated in the kitchen, and moving freely between spaces without bottlenecks.
This is one of the most requested remodeling projects we handle in the Treasure Valley. Boise's housing stock is dominated by homes built between the 1960s and 1990s — ranch homes, split-levels, and bi-levels that were designed around the closed-room floor plans popular during that era. These homes have solid bones and generous square footage, but their layouts feel cramped and dark by today's standards. An open-concept conversion unlocks the potential that is already built into these homes without adding a single square foot.
The complexity of an open-concept remodel varies dramatically depending on whether the walls being removed are load-bearing or non-load-bearing. A non-load-bearing partition wall can be removed in a day with relatively straightforward patching and finish work. A load-bearing wall requires structural engineering, Ada County permits, engineered beams, reinforced posts, and potentially foundation modifications. Our team evaluates every wall before demolition to determine the correct approach and ensure your home's structural integrity is maintained throughout the process.
The single most critical step in any open-concept remodel is determining which walls are load-bearing and which are simple partitions. Load-bearing walls transfer the weight of the roof, upper floors, and any accumulated snow loads down through the framing to the foundation. Removing one without installing an adequate replacement structure will cause the home to sag, crack, and potentially fail. This is not a step that allows guesswork.
Load Path Analysis
Our assessment begins in the attic and crawl space, tracing the load path from the roof structure down through the wall framing to the foundation. In a typical Boise ranch home, the main load-bearing wall runs through the center of the home, perpendicular to the floor joists, directly above the foundation stem wall or center beam. We verify joist direction, check for point loads from posts or headers above, and identify any concentrated loads from roof valleys or hip rafters that transfer weight to specific wall locations.
Beam & Header Engineering
When a load-bearing wall is confirmed for removal, the wall's structural function must be replaced with a beam-and-post system. The beam spans the opening horizontally, and posts at each end transfer the load down to the foundation. For most Boise residential applications, we use one of two beam types: Laminated Veneer Lumber (LVL) beams for spans up to approximately 20 feet, or steel I-beams for longer spans or situations where minimal beam depth is critical to preserve ceiling height. LVL beams are engineered wood products that are lighter, easier to work with on-site, and less expensive than steel. Steel I-beams deliver greater strength per inch of depth and are specified when the engineering demands it — typically for spans exceeding 20 feet or when supporting unusually heavy roof loads such as concrete tile or multiple stories above.
Foundation Verification
The posts supporting the new beam must rest on adequate foundation support. In many older Boise homes, the existing foundation was not designed for the concentrated point loads that beam posts create. We verify that the posts land on a continuous footing, pier, or stem wall capable of handling the load. If the existing foundation is insufficient, we install new concrete piers or footings to distribute the load safely. This is a detail that less experienced contractors frequently overlook, and it is one of the most common causes of post-installation settling and cracking in open-concept conversions.
Open-concept remodels that involve load-bearing wall removal require structural building permits in Ada County. The permitting process protects homeowners by ensuring that engineered solutions are reviewed and inspected by qualified professionals. Skipping permits is illegal, voids insurance coverage, and creates title issues when you sell.
Step 1: Structural Engineering Drawings
A licensed Idaho Professional Engineer (PE) prepares stamped drawings showing the existing load path, proposed beam and post sizes, connection hardware, and foundation support details. These drawings are required for permit submission. Engineering fees typically range from $800 to $2,000 depending on project complexity.
Step 2: Permit Application & Review
We submit the stamped engineering drawings, a scope of work description, and the permit application to the City of Boise Planning and Development Services (within city limits) or Ada County Development Services (unincorporated areas). Review timelines run 2 to 4 weeks for residential structural permits. Meridian, Eagle, and Star have their own building departments with similar requirements.
Step 3: Rough Framing Inspection
After the beam and posts are installed but before drywall is hung, a city or county building inspector verifies that the structural work matches the approved engineering drawings. The inspector checks beam size, post locations, connection hardware, bearing points, and foundation support. Work cannot proceed until this inspection passes.
Step 4: Final Inspection & Sign-Off
After all finishes, electrical, plumbing, and mechanical work is complete, a final inspection confirms the project meets code. The permit is closed and recorded, which protects your investment at resale and ensures your homeowner's insurance remains valid.
Not every home is equally suited for an open-concept conversion, but the Treasure Valley's most common housing styles happen to be excellent candidates. The homes built in Boise, Meridian, Eagle, and Nampa from the 1960s through the 1990s have generous footprints, simple roof structures, and accessible framing that makes wall removal practical and cost-effective.
1960s–1980s Ranch Homes
The single-story ranch is Boise's most common housing style and the best candidate for open-concept conversion. These homes typically have one central load-bearing wall running the length of the house, a simple truss roof that distributes loads predictably, and generous floor plans of 1,200 to 2,000 square feet on one level. The Boise Bench, West Boise, and Garden City are filled with ranch homes that gain dramatically from opening the kitchen to the living room.
Split-Level Homes
Split-levels from the 1970s and 1980s are common in Southeast Boise, Meridian, and the Boise Bench. The half-level offset creates distinct zones that benefit from opening the upper living area into the kitchen and dining space. Structural work on split-levels is more complex because the load paths transition at the level changes, but the payoff in livability is substantial.
Bi-Level (Raised Ranch) Homes
Bi-levels feature a main floor half a level above grade and a lower level half below. Opening the main floor kitchen-living-dining area is the most common conversion. The lower-level walls typically carry different loads than the upper floor, so engineering must account for the stacked structural system. These homes are prevalent in Meridian and Eagle subdivisions from the 1980s and 1990s.
1990s–2000s Two-Story Homes
Newer two-story homes in Star, Kuna, and South Meridian often have partially open floor plans that can be improved by removing one or two remaining partition walls. Since the upper floor bears on specific walls, structural engineering is essential. However, these homes frequently have engineered trusses with documented load data, which simplifies the engineering process.
Removing walls is the structural half of an open-concept remodel. The design half — how you organize the combined space so it functions well without walls to define rooms — is equally important. A poorly planned open floor plan can feel cavernous, noisy, and lacking in purpose. A well-designed one feels spacious, connected, and intentional.
Sight Lines & Visual Flow
The primary benefit of an open floor plan is unobstructed sight lines from the kitchen through the living and dining areas. When designing the layout, we position the kitchen island, dining table, and living room seating so that the person cooking has a clear view of the family areas. In homes with rear-facing windows — common in Boise subdivisions oriented toward the Boise Foothills — we align the open space to maximize the mountain view from multiple positions in the room.
Kitchen Island Placement
In most open-concept conversions, the kitchen island becomes the functional divider between the kitchen work zone and the living area. We typically recommend a minimum of 42 inches of clearance on all sides of the island for comfortable circulation, with 48 inches preferred on the cooking side. A properly sized island provides prep space, casual seating, and a visual boundary that defines the kitchen without closing it off. In Boise ranch homes with 12 to 14 foot kitchen widths, a 4-foot by 7-foot island is the most common size that balances workspace with traffic flow.
Defined Zones Without Walls
Open does not mean undefined. The most successful open floor plans use ceiling treatment changes (beam wraps, tray ceilings, or material transitions), flooring transitions (tile in the kitchen, hardwood in the living area), area rugs, furniture arrangement, and lighting zones to create distinct activity areas within the larger space. Pendant lights over the island, a chandelier or statement fixture over the dining area, and recessed lighting in the living zone create visual separation that the brain reads as distinct rooms — without a single wall.
Traffic Flow & Circulation
A common design mistake in open-concept remodels is creating a space where the primary traffic path cuts through the middle of the living room seating area. We map traffic circulation patterns from the front door, back door, hallway, and garage entry to ensure that the main pathways run along the edges of activity zones rather than through them. In Boise ranch homes where the garage typically enters through the kitchen or a mudroom, this circulation planning is especially important.
Interior walls are not just structural dividers — they are pathways for ductwork, electrical wiring, plumbing vents, and gas lines. Every wall scheduled for removal must be evaluated for the mechanical systems it contains, and those systems must be rerouted before the wall comes down. This is where open-concept remodels get more complex than many homeowners initially expect.
HVAC Ductwork Rerouting
Walls frequently contain HVAC supply ducts, return air ducts, or serve as chase pathways for ductwork running between floors. When these walls are removed, the ductwork must be rerouted through the floor system, ceiling, or adjacent walls. In Boise's climate — where heating systems run hard from November through March and cooling systems work from June through September — properly sized and distributed ductwork is essential for comfort. We assess whether the existing furnace and AC unit have adequate capacity for the reconfigured space and adjust supply register locations to ensure even temperature distribution across the larger open area.
Electrical Relocation
Most interior walls contain electrical outlets (code requires receptacles every 12 feet along walls), light switches, and sometimes dedicated circuits for appliances or home entertainment systems. When a wall is removed, these circuits must be rerouted to remaining walls, floor outlets, or ceiling-mounted junction boxes. Light switches that controlled room-specific fixtures may need to be consolidated or replaced with smart switches that control multiple lighting zones in the combined space. All electrical work requires a licensed electrician and an electrical permit in Ada County.
Plumbing Vent Stacks
In homes where the kitchen shares a wall with a bathroom or laundry room, that wall may contain a plumbing vent stack — the vertical pipe that vents sewer gas through the roof and allows drainage to flow properly. Vent stacks cannot simply be removed; they must be rerouted through an adjacent wall or chase to maintain code-compliant venting. This is one of the more expensive surprises in open-concept remodels when it is not identified during the pre-demolition assessment. We check for plumbing vents, gas lines, and water supply lines in every wall before any demolition begins.
Open-concept remodeling costs in Boise range from $15,000 to $50,000+ depending on the number of walls removed, whether they are load-bearing, the extent of mechanical system relocation, and the level of finish work required. Here is a realistic cost breakdown based on projects we have completed across the Treasure Valley.
| Scope | Typical Cost | Includes |
|---|---|---|
| Non-load-bearing wall removal | $3,000–$8,000 | Demo, patching, drywall, texture, paint, floor repair |
| Single load-bearing wall (LVL beam) | $8,000–$20,000 | Engineering, permits, beam, posts, foundation check, finishes |
| Single load-bearing wall (steel I-beam) | $12,000–$25,000 | Same as LVL plus steel fabrication, welding, fireproofing |
| Multi-wall open-concept conversion | $25,000–$50,000+ | Multiple beams, HVAC reroute, electrical relocation, full refinish |
| Structural engineering fees | $800–$2,000 | Stamped PE drawings for permit submission |
| Ada County structural permit | $200–$600 | Building permit fees based on project valuation |
Costs are based on 2026 Boise-area market rates. Actual project costs vary based on home age, structural complexity, beam span length, mechanical system relocation requirements, and finish material selections. Kitchen and bathroom upgrades performed as part of the open-concept conversion are additional.
Open-concept floor plans are the most-requested layout in the Boise housing market, but they involve trade-offs that every homeowner should understand before committing to wall removal. Here is an honest assessment based on hundreds of remodeling projects across the Treasure Valley.
Advantages
More natural light — windows from multiple former rooms now illuminate the combined space
Better traffic flow — no doorways or narrow passages between kitchen, dining, and living areas
Improved sight lines for supervising children while cooking or working in the kitchen
Enhanced entertaining — hosts stay connected with guests instead of being isolated in the kitchen
Increased resale value — open floor plans are the #1 buyer preference in the Boise market
Perception of more space — the combined area feels significantly larger than the sum of separate rooms
Flexible furniture arrangement — no wall placement constraints on seating, dining, or storage layout
Limitations
Reduced privacy — conversations, TV sound, and phone calls carry across the entire space
Cooking smells and smoke spread to living and dining areas without walls to contain them
Kitchen noise (dishwasher, range hood, blender) is audible throughout the open area
Less wall space for artwork, shelving, and storage — plan for alternatives like gallery walls and built-ins
HVAC rebalancing may be needed to maintain even temperatures across the larger zone
Clutter visibility — the kitchen is always on display, requiring consistent organization habits
Higher project cost when load-bearing walls are involved due to engineering, beams, and permits
How do I know if a wall in my Boise home is load-bearing?
Load-bearing walls typically run perpendicular to the floor joists and are positioned directly above the foundation beam or directly below a roof ridge. In Boise ranch homes from the 1960s through 1980s, the wall separating the kitchen from the living room is load-bearing roughly 70 percent of the time because it supports the roof truss system at the midspan. However, the only reliable method is a structural assessment. Our process starts with a visual inspection, followed by accessing the attic and crawl space to trace the load path from the roof through the framing down to the foundation. We never guess on structural walls. If there is any ambiguity, we engage a licensed Idaho structural engineer to confirm before any demolition occurs. Removing a load-bearing wall without proper support causes sagging, cracked drywall, door frames that no longer close, and in worst cases, structural collapse.
What permits are required for an open-concept remodel in Ada County?
Any project that involves removing or modifying a load-bearing wall in Ada County requires a structural building permit. The application must include stamped structural engineering drawings prepared by a licensed Idaho PE (Professional Engineer) showing the existing load path, the proposed beam and post design, connection details, and foundation support. The City of Boise Planning and Development Services department reviews and issues permits within the city limits, while unincorporated Ada County projects go through Ada County Development Services. Expect a 2 to 4 week permit review timeline. Once the permit is issued, you will need a minimum of two inspections: a rough framing inspection after the beam and posts are installed but before drywall closes, and a final inspection after all finishes are complete. Non-load-bearing wall removals typically do not require structural permits, but electrical and plumbing permits may still be needed if those systems run through the wall being removed.
How much does an open-concept remodel cost in Boise?
Open-concept remodeling costs in Boise range from approximately $15,000 to $50,000 or more, depending on the scope. A single non-load-bearing wall removal with patching and finish work runs $3,000 to $8,000. Removing one load-bearing wall and replacing it with an engineered LVL beam costs $8,000 to $20,000 including the structural engineering, permits, beam, posts, drywall, and finish work. A steel I-beam installation runs 15 to 30 percent higher than LVL due to material and welding costs. Larger projects that involve removing multiple walls, rerouting HVAC ductwork, relocating electrical panels or plumbing vents, and refinishing flooring across the combined space can reach $35,000 to $50,000 or more. The primary cost variables are the number of walls being removed, whether they are load-bearing, the beam span length (longer spans require larger and more expensive beams), and the extent of mechanical system relocation required.
What is the difference between LVL beams and steel I-beams for open-concept conversions?
Laminated Veneer Lumber (LVL) beams and steel I-beams are the two most common structural solutions for replacing load-bearing walls in Boise homes. LVL beams are engineered wood products made from thin wood veneers bonded under heat and pressure. They are lighter than steel, easier to handle in confined residential spaces, and can be cut and drilled on-site with standard carpentry tools. LVL is the preferred choice for spans up to approximately 20 feet in most residential applications. Steel I-beams are stronger per inch of depth, making them the better option for longer spans (20 feet and above) or situations where minimal beam depth is critical to maintain ceiling height. Steel beams require welding or bolted connections and are significantly heavier, sometimes requiring a crane or specialized rigging to position. For the typical Boise ranch home with 12 to 16 foot spans, LVL beams are the standard choice. We specify steel only when the engineering requires it for load or span reasons.
Will opening up my floor plan affect my heating and cooling in Boise's climate?
Yes, combining rooms changes how your HVAC system distributes conditioned air. In Boise, where winter temperatures regularly drop below 20 degrees Fahrenheit and summer highs exceed 100 degrees, heating and cooling performance matters significantly. When you remove walls that separate rooms, the individual HVAC zones effectively merge into one large zone. The existing ductwork was sized and positioned for the original room layout, so supply registers and return air grilles may no longer be optimally placed. Common adjustments include adding or relocating supply registers to serve the combined space evenly, ensuring the return air path is adequate for the larger volume, and occasionally upsizing ductwork runs that now serve a bigger area. In most Boise homes, the existing furnace and air conditioner have adequate capacity for an open-concept conversion — the total square footage has not changed, just the configuration. However, we always perform a heat load assessment to verify before closing up walls and ceilings.
Open-concept remodels often include kitchen upgrades, new flooring across the combined space, and other improvements that maximize the impact of the new layout. Explore the services that pair best with an open floor plan conversion.
The following government agencies, industry organizations, and official resources provide additional information relevant to your remodeling project.
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