Construction Calculators
Free professional-grade calculators for estimating materials, costs, and project requirements.
Fence Calculator
Compare fence costs by material instantly. Free calculator shows pricing for wood, vinyl, aluminum, chain link & wrought iron. Get accurate estimates for 100-400 ft projects.
Try calculatorGrout Calculator
Calculate how much grout you need for your tile project. Enter tile size, joint width, and area to get pounds and bags of grout required.
Try calculatorHome Addition Cost Calculator
Estimate the cost of a home addition by type, square footage, and finish level. Covers bedrooms, bathrooms, garages, sunrooms, and second story additions.
Try calculatorInsulation Calculator
Calculate insulation material needed for walls, attic, floors, and ceilings. Free insulation calculator helps determine R-values, material quantities, and costs for your construction project.
Try calculatorKitchen Remodel Cost Calculator
Estimate kitchen remodel costs by scope, size, and material selections. Get a detailed breakdown for cabinets, countertops, flooring, appliances, and labor.
Try calculatorMetal Building Cost Calculator
Estimate steel kit, foundation, erection, and shipping for commercial pre-engineered metal buildings. Shell-only kits $20–$35/sf; turnkey insulated $50–$80/sf. All four line items separated so kit-only quotes don't mislead.
Try calculatorMulch Calculator
Estimate the amount of mulch needed for your landscaping project with BidFlow's free Mulch Calculator. Calculate by area, depth, and optional waste and cost.
Try calculatorPaver Patio Cost Calculator
Estimate paver patio costs by size, material, and pattern. Get a breakdown of pavers, base material, labor, and optional sealing costs.
Try calculatorSelf-Leveling Concrete Calculator
Calculate exactly how many bags of self-leveling concrete you need for your project. Free professional calculator with cost estimates, material lists, water requirements, and project timeline.
Try calculatorSpray Foam Insulation Cost Calculator
Estimate spray foam material, board feet, and installed cost for commercial walls and roofs. Closed-cell $1.50–$3.50/bf installed; open-cell $0.50–$1.50/bf. Three inputs, defensible bid range with regional adjustment.
Try calculatorSquare Footage Calculator
Calculate the square footage of any space - rooms, yards, walls, or irregular shapes. Free online sq ft calculator for construction and home projects.
Try calculatorTile Calculator
Estimate tile quantity and total cost for LVT, large-format porcelain, polished concrete, carpet tile, and residential installs. Waste factor calculated per pattern - straight, diagonal, or herringbone.
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