Construction Calculators
Calculate materials for building projects
102 calculators in this category
Paint Calculator
Find out exactly how much paint you need for any room — accounts for doors, windows, multiple coats, and ceiling. Get gallons needed and cost estimates.
Tile Calculator
Calculate the number of tiles, boxes, and total cost for your floor or wall tiling project. Accounts for waste percentage, grout spacing, and pattern type.
Concrete Calculator
Enter your slab dimensions to get concrete volume in cubic yards, bags needed, and estimated cost. Works for patios, footings, driveways, and columns.
Flooring Calculator
Estimate materials for hardwood, laminate, vinyl, or carpet floors. Get box counts, waste allowance, and full cost breakdowns for your flooring project.
Wallpaper Calculator
Figure out how many rolls of wallpaper your room needs — accounts for pattern repeat, doors, windows, ceiling height, and standard US or Euro roll sizes.
Roofing Calculator
Estimate shingles, bundles, and roofing squares based on your roof dimensions and pitch. Includes waste factor and coverage tables for common materials.
Deck Calculator
Plan your deck build with exact board, joist, post, and hardware counts. Enter deck dimensions to get a detailed material list and total budget estimate.
Drywall Calculator
Estimate drywall sheets, joint compound, screws, and tape for walls and ceilings. Enter room dimensions to get a complete material list for your project.
Edging Calculator
Free landscape edging calculator. Estimate linear feet, pieces, stakes needed, and total project cost for metal, plastic, stone, brick, or rubber edging.
Insulation Calculator
Determine how many insulation batts and rolls you need for walls and ceilings. Covers R-value selection, standard batt sizes, and material cost estimates.
Lumber Calculator
Calculate lumber board feet, number of pieces, and total cost for framing or decking projects. Uses actual dimensions and includes a 10% waste allowance.
Square Footage Calculator
Measure any room or property in square feet. Supports rectangles, circles, triangles, and irregular shapes with unit conversions and material planning.
Fence Calculator
Estimate fence posts, rails, panels, gates, and total project cost for wood or vinyl fences. Enter fence length and spacing to get a full material list.
Stairs Calculator
Calculate rise, run, number of steps, and stringer length for code-compliant stairs. Works for interior staircases, deck stairs, and remodel projects.
Siding Calculator
Estimate square footage, panel count, and material costs for vinyl, wood, or fiber cement siding. Subtracts windows and doors and adds waste allowance.
Foundation Calculator
Calculate concrete volume for foundation footings in cubic yards and bag counts. Enter building dimensions, wall width, and depth to get cost estimates.
Gravel Calculator
Estimate tons and cubic yards of gravel needed for driveways, patios, and landscaping. Enter area and depth to get material costs and delivery totals.
Mulch Calculator
Calculate how much mulch you need for your garden beds and landscaping. Get cubic yards, bags, and cost estimates for bark, wood chips, and decorative mulch.
Paver Calculator
Estimate paver count, bedding sand, gravel base, and total cost for patios, driveways, and walkways. Supports multiple paver sizes and laying patterns.
Post Hole Concrete Calculator
Calculate how many bags of concrete you need for fence and deck post holes. Enter post size, hole dimensions, and number of posts for accurate estimates.
Firewood Calculator
Estimate how many cords of firewood you need for the winter heating season based on home size, climate zone, and usage. Includes cost ranges by wood type.
Soil Calculator
Calculate how much soil you need for raised beds, gardens, and landscaping. Get cubic yards, bags needed, and cost estimates for your project. Compare options.
Asphalt Calculator
Estimate asphalt tonnage, cubic yards, and installed cost for driveways and parking lots. Enter area and thickness to get full material and labor totals.
Wire Gauge Calculator
Calculate the correct wire gauge (AWG) for your electrical project. Determine wire size based on amperage, voltage, and distance with voltage drop calculations.
Stair Stringer Calculator
Calculate stair stringer length, riser height, tread depth, and angle from your total rise. Includes building code checks and detailed layout dimensions.
Rafter Calculator
Calculate rafter length, ridge height, angle, and birdsmouth cuts for roof framing. Enter run and pitch to get complete dimensions including overhang.
Snow Load Calculator
Calculate roof snow load in PSF based on snow depth, density type, and roof pitch. Assess structural safety with detailed ground and roof load estimates.
Grout Calculator — Tile Grout Estimator
Calculate grout needed for tile projects. Get exact estimates for grout quantity, bags required, and sealer amounts based on tile size, joint width, and area.
Epoxy Flooring Calculator — Materials
Estimate epoxy resin, primer, color flakes, and topcoat for garage or basement floors. Get gallons needed and total cost by epoxy type and floor area.
Carpet Calculator
Calculate carpet area, yardage, padding, and installation costs for your flooring project. Estimate rolls needed, seam placement, and total project expenses.
Caulk Calculator — Tubes Needed
Estimate how many tubes of caulk you need for windows, doors, and bathrooms. Enter joint width, depth, and linear feet to get exact tube counts and cost.
Thinset Calculator — Mortar for Tile
Calculate thinset mortar needed for tile installation. Get accurate estimates for bags required based on tile size, trowel notch size, and coverage area.
Baseboard Calculator — Trim Estimator
Calculate linear feet of baseboard trim and boards needed for any room. Get board counts, corner pieces, waste allowance, and material cost estimates.
Sand Calculator
Calculate how much sand you need in tons and cubic yards for your patio, paver, and fill projects. Enter dimensions and sand type for instant estimates.
Stone Calculator
Calculate tons of stone needed for retaining walls, patios, and landscaping projects. Select stone type, enter dimensions for material and cost estimates.
Excavation Calculator
Calculate excavation volume, truck loads, and hauling costs for your digging project. Factor in soil swell and estimate total removal expenses instantly.
Roof Pitch Calculator
Calculate roof pitch from rise and run measurements, convert between degrees and ratio. Find the slope multiplier for accurate roofing material estimates.
Shingle Calculator
Calculate how many shingle bundles and squares you need for your roof replacement. Enter dimensions or area with pitch for accurate material estimates.
Metal Roofing Calculator
Calculate metal roofing panels, screws, and trim needed for standing seam, corrugated, or ribbed roofs. Get accurate material lists and cost estimates.
Brick Calculator
Calculate how many bricks you need for walls, patios, and projects. Enter wall dimensions and brick size to get accurate material and mortar estimates.
Framing Calculator
Calculate studs, plates, and headers needed for wall framing. Enter wall dimensions, spacing, and openings for a complete lumber list and cost estimate.
Retaining Wall Calculator
Calculate retaining wall blocks, gravel, and drainage materials needed. Enter wall dimensions and block size for accurate material lists and cost estimates.
Electrical Load Calculator
Calculate your home electrical load using the NEC Article 220 standard method. Determine service panel size and total amperage requirements for your house.
Window Calculator
Calculate window replacement costs by type, glazing, and frame material. Get accurate cost estimates for your home window installation project instantly.
House Construction Cost Calculator
Estimate new home construction costs by square footage, quality level, and region. Get detailed material and labor cost breakdowns for building your house.
Deck Staining Calculator — How Much Stain Do You Need?
Calculate how many gallons of deck stain you need with our free calculator. Get a full supplies list, cost estimate, and DIY vs professional comparison.
Home Renovation Estimator
Estimate your home renovation costs by room type, scope, materials, and labor. Get a detailed breakdown of materials, labor, permits, and contingency.
Pergola Calculator
Estimate pergola materials and cost by entering dimensions, post spacing, and wood type. Get post, beam, rafter counts, total board feet, and a cost breakdown.
Concrete Countertop Calculator
Calculate concrete mix, reinforcement, and finishing materials for DIY countertops. Compare total project costs vs granite, quartz, and professional install.
Board Foot Calculator
Calculate board feet, total lumber cost, and estimated weight for hardwood purchases. Includes 7 wood species with kiln-dried density data for weight.
Dehumidifier Sizing Calculator
Calculate the right dehumidifier size in pints per day for your room. Factors in square footage, dampness level, room type, climate zone, and energy cost.
Bathroom Fan CFM Calculator
Calculate the correct exhaust fan CFM for your bathroom based on room size and fixtures. Get duct sizing, sone ratings, and code-compliant ventilation.
Shelf Sag Calculator
Calculate shelf deflection and sag for any material, span, and load. Uses beam deflection formulas with the L/360 rule to check if your shelf will sag.
Mortar Calculator
Calculate mortar mix volume for brick and block wall projects. Enter wall dimensions, joint size, brick type, and mortar type to get bags needed and cost.
Block Count Calculator
Calculate CMU cinder block quantity for wall projects. Enter wall dimensions, block size, and openings to estimate total blocks, mortar, and material cost.
Joist Span Calculator
Calculate maximum floor joist span from lumber size, species, grade, spacing, and load. Get IRC code-compliant span tables for 2×6 through 2×12 joists.
Beam Size Calculator
Calculate required beam dimensions for span and load. Enter span length, tributary width, and lumber species to find the right beam size with safety factor.
Soffit Calculator
Calculate soffit panels and vents needed for your roof overhang. Enter perimeter and overhang depth for panel count, vent spacing, and material cost estimates.
Fascia Calculator
Calculate fascia board linear footage, drip edge, and nails for your roof edge. Enter roof dimensions and material type for accurate instant cost estimates.
Landscape Stone Calculator
Calculate decorative stone weight and volume by coverage area. Enter dimensions and stone type for tons, cubic yards, and cost estimates for your project.
Pipe Size Calculator
Calculate the right pipe diameter for your plumbing flow rate and pressure. Uses Hazen-Williams formula for copper, PEX, PVC, and galvanized pipe sizing.
Load Bearing Calculator
Calculate wall and column load capacity with safety factor analysis. Check stud loads, tributary areas, and structural adequacy for your building project.
Header Size Calculator
Calculate the correct header size for door and window openings based on span width, stories, roof type, and load. Get jack stud and cripple stud counts.
Railing Calculator
Calculate railing materials including balusters, posts, and total rail length. Get accurate material estimates for wood, composite, metal, or cable railings.
Gutter Calculator
Calculate gutter length, downspouts, hangers, and elbows for your roof. Get a full parts list with cost estimates for aluminum, vinyl, steel, or copper gutters.
Water Pressure Calculator
Calculate water pressure loss from elevation and pipe friction. Enter pipe length, diameter, material type, and flow rate for accurate PSI at delivery point.
Drain Slope Calculator
Calculate drain pipe slope and total drop for residential plumbing projects. Enter pipe length and diameter for code-compliant slope in inches per foot.
Septic Tank Calculator
Calculate septic tank size by bedrooms and daily water usage. Get drain field area, installation cost estimates, and pumping schedule for your septic system.
Water Heater Size Calculator
Calculate the right water heater size in gallons for your home. Enter household size, number of bathrooms, and usage level for tank or tankless recommendations.
Circuit Breaker Calculator
Calculate the right breaker size for your electrical circuit load. Check wire gauge compatibility, NEC 80% rule compliance, and remaining capacity instantly.
Conduit Fill Calculator
Calculate maximum wires per conduit size per NEC Chapter 9 tables. Check fill percentage, compliance status, and allowable wire count for any conduit type.
Voltage Drop Calculator
Calculate voltage drop over wire runs for copper and aluminum conductors. Check NEC 3%/5% compliance limits, power loss, and voltage at the load instantly.
Lighting Layout Calculator
Calculate how many light fixtures you need and optimal grid spacing for any room. Get lumens requirements by room type and annual energy cost estimates.
BTU Calculator
Calculate BTU heating and cooling requirements for any room. Enter room dimensions, insulation level, and climate zone to find the right HVAC unit size.
AC Size Calculator
Calculate the right AC tonnage for your home by square footage, climate zone, and SEER rating. Get annual cooling cost estimates and unit recommendations.
Duct Size Calculator
Calculate HVAC duct dimensions for any CFM airflow requirement. Get round and rectangular duct sizes, air velocity, friction loss, and noise level estimates.
Heat Loss Calculator
Calculate home heat loss through walls, windows, and roof. Find furnace BTU size, annual heating cost, and identify where your home loses the most energy.
Concrete Footing Calculator
Calculate concrete needed for deck post footings. Get cubic yards, 60lb and 80lb bag counts, and cost estimates for cylindrical sonotubes and pier footings.
Attic Insulation Calculator
Calculate attic insulation depth and cost by climate zone. Find R-value requirements, bags of blown cellulose or fiberglass needed, and energy savings estimate.
Ceiling Fan Size Calculator
Find the right ceiling fan size for any room. Get blade span, CFM rating, downrod length, and mount type recommendations based on your room dimensions.
Fill Dirt Calculator
Calculate fill dirt in cubic yards, weight in tons, and delivery loads. Enter area dimensions, fill type, and compaction factor for accurate estimates.
Slope Calculator
Calculate ground slope percentage, angle in degrees, rise over run ratio, and slope length. Convert between grade formats for drainage and construction.
Drainage Calculator
Calculate French drain gravel, pipe, and landscape fabric quantities needed. Enter trench dimensions and materials for accurate drainage project estimates.
Crown Molding Calculator — Linear Feet, Cost & Angles
Calculate crown molding linear feet, boards to buy, miter and bevel saw angles, and total project cost. Compare MDF, pine, oak, cherry, and polyurethane.
Backsplash Tile Calculator
Calculate backsplash tiles, material costs, and labor estimates for your kitchen. Covers subway, mosaic, porcelain, glass, and natural stone tile types.
Wainscoting Calculator — Panel, Molding & Cost Estimator
Calculate wainscoting panels, chair rail, and base molding needed for any room. Estimate material and installation costs by style, material, and room size.
French Drain Calculator — Estimate Gravel, Pipe & Cost
Calculate French drain materials including gravel, pipe, and landscape fabric. Compare DIY vs professional costs with soil type adjustments for your project.
Stucco Calculator — Estimate Materials & Installation Cost
Calculate stucco materials and costs for your project. Estimate cement, sand, lath, labor, and total installed price for traditional, 1-coat, or EIFS stucco.
Pizza Oven Calculator — Bricks, Mortar & Build Cost Estimator
Calculate fire bricks, mortar, and insulation for a DIY pizza oven. Compare brick dome, barrel vault, and cob styles with full material costs and build plans.
Rebar Spacing Calculator — Bar Count, Weight & Steel Ratio
Calculate rebar spacing, bar count, total weight, and steel reinforcement ratio per ACI 318-19. Supports #3 through #8 bars for concrete slabs and footings.
Plywood Cut Calculator — Sheet Count, Waste & Cut Layout
Calculate how many plywood sheets you need, pieces per sheet, waste percentage, and total material cost. Factors in saw kerf width and grain direction.
Gas Line Sizing Calculator
Size gas pipes per NFPA 54 code tables. Enter total BTU demand, pipe run length, and material to find the correct pipe diameter for natural gas or propane.
Pump Sizing Calculator
Calculate pump horsepower from flow rate, total dynamic head, and pipe friction. Uses Hazen-Williams formula for PVC, copper, steel, and cast iron systems.
Attic Ventilation Calculator — NFA, Ridge & Soffit Vent Sizing
Calculate attic ventilation NFA needed, ridge vent length, and soffit vent count. Uses 1:150 or 1:300 ratio with climate zone and roof pitch adjustments.
Concrete Expansion Joint Calculator — Spacing, Sealant & Layout
Calculate concrete control and expansion joint spacing, sealant tubes, backer rod, and filler board. Adjust for slab thickness, climate, and joint layout.
Drop Ceiling Calculator — Tiles, Grid & Material List
Calculate drop ceiling tiles, main runners, cross tees, wall angle, and hanger wires for any room. Compare 2×2 and 2×4 tile layouts with cost estimates.
Closet Organizer Calculator — Rods, Shelves & Layout Planner
Calculate closet organizer rod lengths, shelf boards, brackets, and drawer units. Plan reach-in, walk-in, or wardrobe layouts with material cost estimates.
Garage Epoxy Calculator — Gallons, Flakes & Cost Estimator
Calculate epoxy, primer, and etching solution gallons for your garage floor. Includes flake chips, roller covers, cure schedule, and total project cost.
House Wrap Calculator — Rolls, Tape & Cap Nails Estimator
Calculate house wrap rolls, seam tape, and cap nails for your siding project. Deducts windows and doors, adds gable ends, includes 10% overlap allowance.
Fence Post Depth Calculator
Calculate fence post depth, hole diameter, post count, and concrete bags needed from fence height, frost line depth, soil type, wind exposure, and spacing.
Shed Foundation Calculator
Calculate shed foundation area, gravel volume, concrete, skids, and block count from shed size, base depth, slab thickness, and foundation style choice.
Handrail Calculator
Calculate stair handrail length, cut length, bracket count, angle, and stock sections from total rise, total run, returns, extensions, and the number of sides.