Building Cost Calculators
Use this cluster to estimate construction quantities, dimensions and project costs.
Part of Home Improvement.
Calculators
- Basement Finishing CalculatorEstimate a basement finishing or remodeling budget from floor area, finish level, bathroom allowance, egress work and contingency.
- Build Up vs Build Out Cost CalculatorCompare the cost of adding a second story versus expanding your home's ground-floor footprint. Model structural reinforcement, roof reconstruction, stairs, foundation, excavation, site work, utilities, permits, design, contingency, and lot impact.
- Bump Out Addition Cost CalculatorEstimate the full cost of a home bump-out addition. Compare cantilevered and foundation-supported designs and account for size, structural work, roof tie-in, wall removal, HVAC, plumbing, electrical, windows, finishes, permits, design, and contingency.
- Garage Addition Cost CalculatorEstimate the full cost of an attached or detached garage addition. Model size, number of bays, slab, roof, siding, garage doors, electrical, EV charging, heating, insulation, bathroom, workshop, driveway, permits, design, contingency, and living space above.
- Home Addition Cost CalculatorEstimate the cost of a home addition with low, likely, and high scenarios. Account for size, addition type, finish level, foundation, HVAC, region, bathrooms, kitchens, permits, design, contingency, utilities, and other project costs.
- Master Suite Addition Cost CalculatorEstimate the full cost of adding a master or primary suite, including bedroom, bathroom, walk-in closet, foundation, plumbing, HVAC, electrical, windows, finishes, permits, design, and contingency.
- Metal Building Cost CalculatorEstimate metal building cost from floor area, shell cost, foundation, erection, interior build-out and contingency.
- Oklahoma Barndominium Cost CalculatorEstimate an Oklahoma barndominium project budget from conditioned area, shop area, site work, utilities, permits and contingency.
- Pole Barn Cost CalculatorEstimate pole barn construction cost from building dimensions, cost per square foot, site work, doors, insulation and contingency.
- Room Addition Cost CalculatorEstimate the full cost of adding a bedroom, bathroom, master suite, family room, office, laundry room, mudroom, or kitchen extension. Model foundation, HVAC, plumbing, electrical, finishes, windows, permits, design, contingency, and project-specific costs.
- Second Story Addition Cost CalculatorEstimate the cost of adding a second story to a house with low, likely, and high scenarios. Model structural reinforcement, roof removal and rebuilding, stairs, HVAC, plumbing, electrical, finishes, permits, design, temporary living, and contingency.
- Sunroom Addition Cost CalculatorEstimate the full cost of a 3-season, 4-season, screened, or solarium-style sunroom. Include glazing, foundation, roof, insulation, HVAC, electrical, doors, shading, permits, design, and contingency.
Guides
Frequently Asked Questions
- What does the Metal Building Cost Calculator calculate?
- Estimate metal building cost from floor area, shell cost, foundation, erection, interior build-out and contingency.
- Is the estimate exact?
- No. It is a planning estimate based on the dimensions, prices, densities, waste factors and other assumptions entered.
- Can I use local prices and supplier data?
- Yes. Replace every example value with current local quotes, product dimensions, densities and installation requirements.
- Should I verify the quantities before ordering?
- Yes. Confirm field measurements, product coverage, compaction, waste, structural requirements and supplier conversion factors before ordering materials.
Last updated 8/12/2026