FREE TOOL · UPDATED 2026
Estimate the cost of a new home, ADU, garage, or underground shelter — across five construction methods, seven U.S. regions, and three finish levels. Includes line-item breakdown and method comparison. No signup required.
Estimates reflect 2024–2026 U.S. averages including materials and labor. Site-specific conditions, contractor markup, permits, and engineering fees are not included. Use as a planning baseline only.
Estimated Total Cost
Cost Breakdown (mid estimate)
Method Comparison — 1,500 sq ft · southeast
Compare with ferrocement before you decide.
Ferrocement costs $165,000 for this size — and outperforms Wood Frame on fire, wind, and lifespan. FerroKits ships pre-engineered kits with no contractor hunt required.
HOW TO USE THIS TOOL
Construction costs in the U.S. vary by 40–50% depending on region, another 30–40% based on finish level, and significantly by construction method. The estimates above reflect material and labor costs for typical residential construction — permits, engineering fees, site clearing, and contractor markup (typically 15–25%) are additional.
Why does region matter so much?
Labor costs are the largest variable in construction. Pacific Coast states (CA, WA, OR) run 30–35% above national average due to high union labor and material transportation costs. Southeast states run 10–15% below average. The same 1,500 sq ft house could cost $140K in Alabama and $230K in California.
Wood frame vs. ferrocement: what's the real cost difference?
At standard finish, ferrocement homes from Am-Cor kits run $89–165/sq ft — comparable to or below mid-grade wood frame ($100–200/sq ft). The difference: ferrocement is non-combustible, rated to 200+ MPH, has 2hr fire resistance, and requires almost no exterior maintenance over a 100+ year lifespan. The long-run cost of ownership is substantially lower.
What's not included in these estimates?
Site-specific costs (land clearing, foundation soil work, retaining walls), permitting fees (typically $2,000–12,000 depending on jurisdiction), engineering and architectural fees (8–15% of construction cost), contractor overhead and profit (15–25%), and utility connection fees. These estimates are for the structure itself.
Are ferrocement homes cheaper than concrete block?
Generally yes, especially for kit-based systems. Traditional poured concrete or CMU block requires expensive forming, extensive site labor, and long cure times. Ferrocement uses thin mortar over wire armature — much less material per sq ft, faster installation, and when built from a pre-engineered kit, fewer skilled tradespeople required.
How accurate are these estimates?
These are budget-level estimates appropriate for early-stage planning — accurate within ±20–30% for most projects. Accuracy improves with a contractor quote and site-specific assessment. For ferrocement kit projects, Am-Cor provides detailed quotes based on your specific design and location.
What does "kit" mean for ferrocement construction?
Companies like Am-Cor (FerroKits) ship pre-cut wire mesh armatures, mortar mix, and complete engineering documentation for your shell. The kit approach eliminates the "find a ferrocement contractor" problem — most builders can apply mortar to a pre-built armature with minimal training. Kits ship in 4–12 weeks depending on size.
CONSTRUCTION METHOD GUIDE
Wood Frame
$100–200/sq ft
Best for: Budget-conscious builds in low-risk areas
Combustible, susceptible to rot, mold, and wind. Typical lifespan 40–60 years with regular maintenance.
Ferrocement
$89–165/sq ft (kit)
Kit availableBest for: Disaster-resilient homes, shelters, ADUs — anywhere fire, wind, or grid-down is a real risk
Less familiar to most contractors. Kit-based approach (FerroKits) solves this — comes with Macdonald Architects engineering and Am-Cor installation support.
ICF (Insulated Concrete Forms)
$130–240/sq ft
Best for: Energy efficiency-focused builds, cold climates
More expensive than ferrocement, requires specialized contractors, and has more complex waterproofing requirements.
Steel Frame
$90–195/sq ft
Best for: Large spans, commercial crossovers, industrial aesthetic
Poor thermal performance without added insulation. Requires fire protection coating. Not ideal as a standalone disaster-resilient system.
Concrete Block (CMU)
$110–215/sq ft
Best for: Fire resistance on a budget, Florida/Southeast builds
Low thermal mass without fill, labor-intensive, difficult to retrofit or expand. Lifespan is strong but maintenance higher than ferrocement.
FERROKITS BY AM-COR
Am-Cor has been building ferrocement structures since 1973. FerroKits is their direct-to-builder program — pre-engineered shells with Macdonald Architects stamped plans, wire armature, mortar mix, and installation support. No contractor hunt. No custom engineering fees.