50×100 · custom-designed
50×100 Barndominium
A 5,000 sqft (50 ft × 100 ft) custom steel barndominium — designed around your household and site, not pulled from a stock-plan catalog. Shell kits from $28/sqft; turnkey delivery via our vetted contractor network where coverage exists. The 50×100 is the upper end of the homestead shop-house: a serious 4-bay shop and a full 4–5 bedroom family home in one steel envelope.
Pricing
How Much Does a 50×100 Barndominium Kit Cost?
The shell kit for a 50×100 starts from $140,000 — the engineered steel frame, roof and wall panels, fasteners, and hardware, delivered to your site at $28/sqft across the 5,000 sqft footprint. Turnkey — move-in ready through our vetted contractor network — starts from $575,000, with the full blended range running $575,000–$1,000,000 at $115–$200/sqft, all-in across the full footprint.
Finish level on the living side moves the range the most at this size. Cabinets, flooring, countertops, and fixtures can roughly double the per-sqft turnkey cost between builder-grade and high-end selections on a 5,000 sqft building. That delta compounds quickly when you’re finishing 3,000 sqft of living space — a builder-grade kitchen and LVP floors land you at the low end; custom cabinetry, stone counters, and hardwood land you toward the top.
Shop configuration drives the next-biggest swing. Three versus four bays, sidewall height, overhead-door count and spec (RV-height and oversized commercial doors add real cost), shop conditioning (full vs. partial vs. open), and any mezzanine or work platform inside all affect the final number. A loft addition — which can add a full second-floor suite or wing without increasing the footprint — adds meaningful cost but also meaningful space. Foundation type varies by climate: a standard slab costs less than a frost-protected shallow foundation or a pier system, and at 5,000 sqft the proportional concrete cost is real. Site work — utility runs, septic sized for a larger occupancy, a well, and driveway graded for truck and RV access — rounds out the variation. If you build the light-commercial layout, occupancy classification adds plumbing and fire-separation requirements that meaningfully affect cost.
Geography is the single biggest cost driver. Midwest and Southern rural markets sit at the low end of the blended range; rural Northeast, mountain West, and Pacific Northwest sit at the high end. For accurate pricing in your market, see your state page.
What fits
What Can You Fit in a 50×100 Barndominium?
In the default shop-house split, a 50×100 yields roughly 3,000 sqft of living and a 4-bay shop of about 2,000 sqft. The living side supports 4–5 bedrooms, 3 bathrooms, an open kitchen and great room, dedicated dining, a real utility room and pantry, a mudroom or drop zone, and a dedicated home office — a complete large family home, not a compact layout making do. The shop side fits four bays in several configurations: two truck/SUV bays, one RV or boat bay, and one workshop bay is one common arrangement; three larger truck bays plus tractor and equipment storage with serious bench space is another. Sidewall height and overhead-door spec are custom to your build.
The 50×100 also supports a full loft addition — easily a second-floor master suite, a complete kids’ wing, an in-law suite, a home office, or a media room — without touching the footprint. On the main floor you can shift the shop/living dividing wall to bias more living or more shop depending on your priorities. Conditioned versus unconditioned shop zones, a partial-height mezzanine inside the shop, and a work platform are all realistic additions at this scale. Multiple covered porches are standard in an all-living or shop-house layout at this footprint.
If you go all-living, the 5,000 sqft footprint supports 5 bedrooms, 4 bathrooms, a dedicated office and library, formal dining, a vaulted great room, a large kitchen with butler’s pantry, a mudroom, and a possible guest wing — a home that competes with custom residential construction on square footage alone. The light-commercial layout flips the ratio: a 1,500–2,000 sqft residential side (2 BR, 1.5 BA) paired with a 3,000+ sqft commercial bay suited to a contractor headquarters, fleet-vehicle storage, a home-based small business, or a working farm with processing or farm-stand space.
The 50×100 advantage
The Only Footprint That Delivers a 4-Bay Shop and a Full 4–5 Bedroom Family Home in One Building
The 50×100 holds a specific position in the homestead shop-house product line that neither neighbor can replicate. The 100-foot depth is what makes the combination possible: it gives the living side enough run for a full 3,000 sqft layout — dedicated office, real utility and pantry, mudroom, dining, and 4–5 bedrooms — while still leaving a genuine 2,000 sqft, 4-bay shop behind it. Shorter footprints compromise one side or the other. The 50-foot width keeps structural spans manageable and cost proportional on both sides of the dividing wall.
The 60×80, the closest neighbor by square footage at 4,800 sqft, achieves its scale through width rather than depth — it favors all-living layouts and wide open spans rather than the shop-house split this footprint is built around. The 50×100’s 100-foot run is what produces serious shop depth: room for an RV or boat bay, overhead-door clearance, drive-through potential, and bench space that doesn’t crowd the living side. If a 4-bay shop attached to a real family home is the goal, this is the footprint that delivers it without spilling into the 60×100’s commercial scale.
Layouts
How a 50×100 Can Lay Out
We design custom plans — not stock floor plans. The 5,000 sqft footprint runs from an all-living home to a shop-forward build, drawn around your household and site.
The same 50×100 shell runs the full range — from All-living to Mostly shop, and anywhere in between. These are common starting points, not fixed plans. Every 50×100 we build is custom-drawn from scratch.
Drawn to scale. The living-to-shop split shown is just one of many possible layouts — every 50×100 is designed from scratch.
The shop-house split is the natural default for this footprint: roughly 3,000 sqft of living on one end, a 4-bay shop on the other, with the dividing wall positioned to your preference. Because the 100-foot run is generous, your plan can shift that wall meaningfully — bias toward more living for a large family with modest shop needs, or push more depth into the shop for serious equipment and RV storage — without giving up the essential character of either side. A loft addition over the living zone (or over a portion of the shop, as a mezzanine) adds substantial area without increasing the footprint, and is a natural upgrade at this scale.
The all-living layout converts the full 5,000 sqft into a single-story home — 5 bedrooms, 4 baths, vaulted great room, formal dining, butler’s pantry, dedicated library and office, mudroom, and multiple covered porches. This is a substantial custom home; it competes on square footage with high-end residential construction and suits large or multi-generational households with no shop requirement.
The light-commercial / live-work layout puts a compact 1,500–2,000 sqft residential unit (2 BR, 1.5 BA) on one end and a 3,000+ sqft commercial bay on the other — suited to a contractor headquarters with shop, fleet-vehicle storage, a working farm with processing and farm-stand space, or a home-based small business with real operational footprint. Note that a commercial-occupancy layout carries plumbing and fire-separation requirements that affect both plan design and cost; if this is your direction, raise it early in the custom design conversation. Buyers considering a mostly-shop build at even larger scale may want to look at the 60×100, which crosses into commercial live-work territory.
Best for
What a 50×100 Barndominium Is Best For
The 50×100 is best for large families, working homesteaders, and home-based business owners who need a serious 4-bay shop plus a 4–5 bedroom family home in one envelope. It’s the top of the residential shop-house range before a build crosses into commercial occupancy.
Large and multi-generational families find this footprint works because the living side is genuinely complete — not a compressed layout trading rooms for shop space. Four to five bedrooms, 3 bathrooms, a dedicated home office, real utility and pantry, and a mudroom leave nothing squeezed. A loft adds a second floor without adding footprint, which suits in-law or guest quarters that need some separation from the main living area.
Established homesteaders and working farms with substantial equipment are a natural fit. Four bays handles tractors, hay equipment, multiple trucks, an RV or boat, and a workshop bay with bench space — the kind of operation that has outgrown a 2-bay garage and needs something purpose-built. Contractors and small-business owners who run a working shop from home similarly benefit: the light-commercial layout scales the shop side to 3,000+ sqft of commercial bay while keeping a livable residential unit on the other end, consolidating home and operation on one property.
Rural professionals using one side as a long-term family home and the other as a working hobby workshop or home business also land here — the 50×100 is large enough to keep those uses genuinely separate rather than sharing awkward half-measures. Buyers who need a large family home without any shop can consider the 60×80, which prioritizes width and all-living scale. Buyers who need a commercial-grade build — not just a large shop — should look at the 60×100.
Size comparison
50×100 vs. Other Sizes
| 50×100 | 60×80 | 60×100 | |
|---|---|---|---|
| Footprint | 5,000 sqft | 4,800 sqft | 6,000 sqft |
| Turnkey range | $575,000–$1,000,000 | $552,000–$960,000 | $690,000–$1,200,000 |
| Best for | 4-bay shop + 4–5 BR home | Large family home, all-living | Commercial live-work |
The 60×80 (4,800 sqft) is close in total area — only 200 sqft less — but the geometry tells a different story. The 60×80 is wider and shallower, which favors wide-span all-living layouts and open great rooms; it’s not the natural shop-house footprint. Buyers choosing between them are usually choosing between a large family home with optional modest shop space (60×80) and a genuine 4-bay working shop attached to a full family residence (50×100). The 100-foot depth is what makes the shop side serious at this size.
The 60×100 (6,000 sqft) is the next step up and a meaningfully different product. Where the 50×100 stays firmly residential — a working shop attached to a real family home — the 60×100 crosses into commercial occupancy, with apartment-style living quarters on one side and a commercial-scale bay on the other. If the goal is a working family homestead, the 50×100 is the right footprint; if the goal is a business headquarters with attached living quarters, the 60×100 is where to look.
Kit or turnkey
Kit or Turnkey: How Most Buyers Build a 50×100
Most buyers at this size choose turnkey because they can’t erect a steel shell themselves. Here’s exactly where the kit ends and the finished home begins.
The shell kit delivers the engineered steel frame, roof and wall panels, all fasteners and hardware, and delivery to your site — the building envelope, ready to erect. Turnkey adds the foundation slab, professional shell erection, all mechanical trades (electrical, plumbing, HVAC), and full interior finish on the living side — plus shop-specific work like overhead-door installation, conditioned-zone framing, and any mezzanine structure. At a 5,000 sqft build with a 4-bay shop and a full family residence, the trades coordination alone is a significant undertaking; turnkey delivery consolidates that into one managed process through our vetted contractor network where coverage exists.
The process
How Turnkey Delivery Works
Turnkey delivery runs in four stages. We coordinate the vetted contractors at each one, so you manage one process instead of a dozen subcontractors.
FAQ
Frequently Asked Questions
How much does a 50×100 barndominium cost?
The shell kit starts from $140,000 (from $28/sqft across 5,000 sqft). Turnkey — move-in ready — starts from $575,000, with the full blended range running $575,000–$1,000,000 depending on finish level, shop configuration, geography, and site conditions.
How many bedrooms and shop bays fit in a 50×100 barndominium?
In the default shop-house split, a 50×100 fits 4–5 bedrooms and 3 bathrooms on the living side (roughly 3,000 sqft) and a 4-bay shop on the other (roughly 2,000 sqft) — configured as two truck/SUV bays, one RV or boat bay, and one workshop bay, or three larger truck bays plus tractor and equipment storage. Sidewall height and overhead-door spec are custom to your build.
Can a 50×100 work for a home-based business or commercial use?
Yes — the light-commercial / live-work layout puts a compact 1,500–2,000 sqft residential unit (2 BR, 1.5 BA) on one end and a 3,000+ sqft commercial bay on the other, suited to a contractor headquarters, fleet-vehicle storage, a working farm with processing space, or a home-based small business. Note that a commercial-occupancy classification adds plumbing and fire-separation requirements that affect both design and cost.
What’s the difference between a 50×80 and a 50×100 barndominium?
A 50×80 is 4,000 sqft; a 50×100 is 5,000 sqft — 1,000 sqft more, all added in depth. That extra 20 feet of run makes a meaningful difference in the shop-house split: the 50×100 can support a genuine 4-bay shop while keeping 3,000 sqft of living, whereas a 50×80 either compresses the shop or compresses the living side. If a 4-bay shop plus a full 4–5 bedroom home is the goal, the 50×100 is the footprint that delivers it.
Can I get a 50×100 as a custom design?
Yes — every Oak and Iron Kits build starts with a custom design, not a stock floor plan. The shop/living split, loft addition, sidewall height, overhead-door placement, interior layout, and finish selections are all drawn around your household, site, and use case.