A barndominium shell kit includes the weathertight metal building with steel frame, panels, insulation, and professional installation but not foundation, interior finishing, or MEP systems. Most first-time buyers think they are getting a lot more than they actually are, and that is how disappointment starts.
Let me be straight with you. The term “shell kit” confuses people because they hear “kit” and think everything arrives ready to assemble. That is not how Metal America works. We manufacture your building, deliver it to your site, and install the complete shell with professional crews in 1 to 3 days. You are not bolting this together yourself. We handle the shell installation. What you do NOT get is everything inside those walls or anything under them.
The shell represents 30 to 40 percent of your total project cost. Foundation, interior walls, plumbing, electrical, HVAC, flooring, cabinets, and every other thing that makes a building livable comes out of your pocket. If you budget only for the shell, you will run out of money halfway through framing.
What “Shell Kit” Actually Means
The metal building only gets delivered and installed. You get steel framing, metal panels on the roof and walls, basic insulation, and all the structural components bolted together properly. The building is weathertight when we leave. Rain stays outside. Wind stays outside. That is it.
No drywall arrives with the shell. No toilets. No kitchen sink. No light switches. The shell creates a weathertight workspace where interior construction can happen. You still need to pour a foundation before the shell arrives. You still need to hire electricians, plumbers, and HVAC contractors after the shell goes up. The 9 to 12 month construction timeline includes all that work happening after our crews leave.
| Component | In Shell Kit | Your Responsibility |
|---|---|---|
| Steel framing | Yes, 12-gauge with 20-year warranty | Nothing |
| Roof and wall panels | Yes, 26-gauge installed | Nothing |
| Double-bubble insulation | Yes, included standard | Additional insulation for living space |
| Professional installation | Yes, 1-3 days typical | Site must be level and ready |
| Frame-outs for openings | Yes, cut to your specs | Actual doors and windows |
| Foundation/concrete slab | No | Pour drip ledge slab, $6-14/sq ft |
| Interior framing | No | Wood stud walls, your cost |
| Drywall and finishing | No | All interior surfaces, your cost |
| MEP systems | No | Electrical, plumbing, HVAC, your cost |
| Doors and windows | No | Purchase and provide before install |
| Permits and inspections | No | Your responsibility entirely |
The surprise that hits people hardest is the foundation cost. Concrete for a 2,400 square foot slab runs $14,400 to $33,600 depending on your location. That matches or exceeds what you pay for the shell itself.
Metal America’s Shell Package Includes
The 12-gauge steel framing is the only gauge certified for habitable residential structures. The frame comes galvanized with a 20-year rust-through warranty. The 26-gauge metal panels cover your roof and walls with a 20-year rust warranty plus color fade warranty lasting 20 to 40 years depending on environment.
Double-bubble insulation gets included standard. This material redirects 96 percent of radiant heat and acts as a vapor barrier. You will add significant insulation during interior finish, but the double-bubble gives you a starting point.
Professional installation means certified crews deliver your building and assemble it on site in 1 to 3 days. The crew bolts everything together, installs all panels and trim, and seals everything properly. We do not leave until the building is weathertight and square.
Frame-outs for doors and windows get cut during fabrication with header bars included. Metal America can install your doors and windows during shell installation for $200 per unit, but the doors and windows must be on site before sheeting installation. Once you have barn home plans approved and ready, coordinate door and window delivery with your shell installation date.
Buildings 30 feet wide and smaller use double legs. Buildings over 30 feet wide require ladder legs, which intrude about 12 inches into your interior space on both walls. Spacing stays at 4 feet on center for all uprights, providing the strength needed for living spaces with drywall, insulation, and finish materials.
What You Need to Provide or Hire
Foundation and concrete slab work is entirely your responsibility. You need a notched edge slab with proper drip ledge. Standard specs call for minimum 4-inch thick slab, 3000 PSI concrete, and rebar reinforcement. Foundation costs run $6 to $14 per square foot depending on location.
Site-specific engineered drawings cost $1.40 to $1.80 per square foot depending on PSF requirements. The engineer needs to know your location, soil type, and local code requirements before you pour concrete.
Interior framing uses wood studs not included in the Metal America package. Drywall, insulation beyond double-bubble, and all interior finishes are your responsibility. All MEP systems fall on you at $15 to $25 per square foot combined.
Doors and windows must be purchased and provided by you. The shell includes frame-outs for the openings, not the actual doors or windows. Permits and inspections are your responsibility. Budget $500 to $2,000 for permit fees.
Realistic Total Project Costs
The shell represents 30 to 40 percent of your total project cost. Foundation work consumes 15 to 20 percent. Interior finish represents 30 to 35 percent. MEP systems consume 15 to 20 percent. Drawings and permits represent 5 to 10 percent.
| Component | % of Total | Cost Range per Sq Ft | Example 2,400 Sq Ft Cost |
|---|---|---|---|
| Shell kit | 30-40% | $15-25 | $36,000-$60,000 |
| Foundation | 15-20% | $6-14 | $14,400-$33,600 |
| Interior framing | 8-12% | $3-5 | $7,200-$12,000 |
| Drywall and insulation | 10-15% | $4-7 | $9,600-$16,800 |
| MEP systems | 15-20% | $15-25 | $36,000-$60,000 |
| Finishes and fixtures | 15-20% | $6-10 | $14,400-$24,000 |
| Permits and drawings | 5-10% | $2-4 | $4,800-$9,600 |
| Total | 100% | $100-150 | $240,000-$360,000 |
Location creates significant pricing variation. Concrete costs $8 per square foot in rural Texas but $12 per square foot in Colorado. Get local quotes rather than relying on national averages.
The Installation Process
Metal America schedules installation for a specific week after manufacturing completes. The crew typically arrives 1 to 2 days into that week. Installation takes 1 to 3 days depending on building size.
The crew needs clear site access and 10 feet of clearance around the building. Your slab must be level within 3 inches front to back and side to side. If your lot is not level when they arrive, the crew leaves and you pay a $500 return charge when the site is ready.
Post-installation marks the beginning of your interior work. The shell is weathertight and ready for construction inside. Months of work remain before anyone moves in. The complete guide to the barndominium construction process breaks down every phase.
After Shell Installation: What’s Next
Interior framing takes 2 to 4 weeks. MEP rough-ins follow, with plumbing, electrical, and HVAC working simultaneously or in sequence. Insulation and drywall take 4 to 6 weeks. Interior finishing takes 6 to 10 weeks.
Timeline for post-shell construction averages 6 to 8 months. The entire project from breaking ground to moving in takes 9 to 12 months on average.
DIY vs General Contractor for Interior
DIY work saves 15 to 25 percent on labor but adds 3 to 6 months to your timeline. General contractors provide faster completion, warranty coverage, and professional coordination. The hybrid approach uses a GC for rough-in work and DIY for finishes.
| Approach | Cost Savings | Time Added | Skill Required | Best For |
|---|---|---|---|---|
| Full DIY | 15-25% saved | 3-6 months added | High skill, construction experience | Experienced builders with available time |
| Hybrid (GC rough-in, DIY finish) | 10-15% saved | 1-3 months added | Moderate skill, finish work knowledge | Some experience, want to save money |
| Full GC | 0% saved | 0 months added | None required | No experience, want professional results |
Most people overestimate their skills and underestimate the time required. What looks easy on YouTube takes three times longer when you are actually doing it.
Common Shell Kit Misunderstandings
The “turn-key” misconception causes more disappointment than anything else. The shell is weathertight, not livable. You cannot get an occupancy permit without plumbing, electrical, HVAC, and interior walls installed and inspected.
Window and door confusion trips people up constantly. The shell includes frame-outs, not the actual doors and windows. You purchase those separately.
Foundation assumptions catch people off guard. The foundation is not included, not cheap, and cannot be skipped. You need proper concrete work meeting local requirements.
The reality is that buying a shell is buying a starting point, not an endpoint. Budget for the complete project and set realistic expectations about timeline and costs.
FAQ
Q: What does a barndominium shell kit include?
A: A barndominium shell kit includes the 12-gauge steel frame, 26-gauge metal panels, double-bubble insulation, professional installation, and frame-outs but not foundation, interior finishing, or MEP systems.
Q: How much does a complete barndominium cost beyond the shell?
A: Complete barndominiums cost $100 to $150 per square foot, with the shell representing only 30 to 40 percent of the total project cost.
Q: Are windows and doors included in a shell kit?
A: No. Shell kits include frame-outs for windows and doors, but you must purchase and provide the actual windows and doors before installation.
Q: Do I need a general contractor after the shell is installed?
A: You need either a general contractor or multiple subcontractors to complete foundation, interior framing, MEP systems, and finishes after shell installation.
Q: How long does shell installation take?
A: Professional shell installation takes 1 to 3 days depending on building size, with most 2,400 square foot barndominiums completed in 2 days.
Q: Can I live in a barndominium shell while finishing the interior?
A: No. Shell kits are weathertight but lack plumbing, electrical, HVAC, insulation, and interior walls required for habitable occupancy permits.
Conclusion
The shell is your starting point, not your finish line. Metal America delivers and installs a superior structure that will protect your investment for decades, but building the actual living space falls entirely on you or your general contractor.
Budget for the complete project from day one. Realistic expectations prevent disappointment and keep your project moving forward. The folks who understand what they are buying before they sign contracts end up happy