All 64 Calculators, by Trade
Every tool on the site, grouped the way jobs actually happen. Each one shows its formula, names its waste factor, and gives you the honest range to order against.
Concrete
Concrete Calculators22 tools
Slabs, steps, curbs, walls, and what the work costs, with the ordering allowance built into every pour. Visit the Concrete hub for the full guide.
- Concrete Slab CalculatorYards or bags for pads, garages, and floors, with the ordering range built in.
- Concrete Block Wall CalculatorCalculate the number of standard 8×16 CMU blocks and mortar bags needed for your wall area, using the modular 0.889 sq ft face and a labeled breakage allowance.
- Concrete Curb CalculatorCalculate concrete volume for a standalone curb from its cross-sectional dimensions and run length, plus the standard NRMCA ordering allowance.
- Concrete Demolition Cost CalculatorEstimate debris volume and tonnage from the slab you're removing, plus a modeled labor band for breaking, loading, and hauling; material isn't the cost driver here.
- Concrete Foundation Cost CalculatorSize an 8-inch foundation pour and see a modeled labor band plus sampled material pricing, not a single blended 'average cost' number that hides the real variables.
- Concrete Mix Design CalculatorWhat most searches for 'mix design' actually want is 1:2:3 volumetric batching; real ACI 211 mix design is different. This calculator does batching, honestly.
- Concrete Ramp CalculatorCalculate concrete volume for a tapered ramp using the wedge formula V = L × W × H ÷ 2, plus the standard NRMCA ordering allowance for the pour.
- Concrete Sealer CalculatorEstimate concrete sealer gallons from your surface area and finish type, using the manufacturer coverage band of roughly 200-400 sq ft per gallon.
- Concrete Sidewalk Cost CalculatorPrice a standard 4-foot-wide sidewalk run with a modeled masonry labor band and sampled material costs: honest ranges, not one blended average figure.
- Concrete Square Foot CalculatorTurn a square-footage measurement into cubic yards with the same closed-form math a ready-mix dispatcher uses, plus the standard NRMCA ordering allowance.
- Concrete Step CalculatorCalculate solid concrete volume for a set of steps from width, rise, run, and step count, with a code-riser flag and the standard NRMCA ordering allowance.
- Concrete Steps Cost CalculatorPrice a solid-stair concrete pour with a modeled masonry-crew labor band and sampled 80 lb bag material costs: steps take more labor per yard than a flat slab.
- Concrete Thickness CalculatorSee how much concrete volume changes as you adjust slab thickness, since a small depth change moves yardage more than most people expect before ordering.
- Crushed Concrete CalculatorCalculate crushed concrete volume and tonnage for base material, with the standard 324 divisor rule and a 10-20% compacted-base ordering allowance.
- Curb and Gutter Concrete CalculatorCalculate concrete volume for combined curb-and-gutter sections from your cross-section dimensions and run length, plus the standard NRMCA ordering allowance.
- Duct Bank Concrete CalculatorConduits inside a duct bank displace concrete: most estimates ignore it. This calculator nets it out, then adds the standard NRMCA ordering allowance.
- ICF Concrete CalculatorCalculate the concrete core-fill volume for insulated concrete form walls: wall length times height times core thickness, with the standard ordering allowance.
- Material Calculator for a Concrete SlabCalculate the concrete bag count or ready-mix yardage for your slab from exact dimensions, using published bag yields and the standard NRMCA ordering allowance.
- Patio Concrete CalculatorCalculate cubic yards for a concrete patio pour from your exact dimensions, with the standard NRMCA ordering allowance so you don't get hit with a short-load fee.
- Polished Concrete Floor Cost CalculatorPolishing is labor-dominated, not material-dominated. This tool sizes densifier/sealer quantity plus a modeled masonry-crew labor band instead of one flat price.
- Self-Leveling Concrete CalculatorEstimate self-leveling underlayment bags from your floor's average fill depth, not a flat coverage guess: real consumption doubles fast on uneven substrates.
- Triangle Concrete CalculatorCalculate concrete volume for a triangular slab using the half-prism formula V = ½ × L × W × T: the same math this site's ramp calculator runs, relabeled.
Roofing
Roofing Calculators15 tools
True area from footprint and pitch, then bundles, panels, nails, and the dumpster, in the units suppliers sell. Visit the Roofing hub for the full guide.
- Asphalt Shingle Roofing Cost CalculatorBundle takeoff is exact math; labor is what makes “cost per square” vary 2-3x by region. This models both honestly as a planning band (see /methodology/).
- Commercial Roofing CalculatorCommercial roof area from footprint and a low-slope pitch default, with the slope-factor math shown: honest ranges for squares, not one fabricated total.
- EPDM Roofing Cost CalculatorEPDM is a low-slope membrane sold by the roll, not the bundle. Cost here is a modeled labor band on burdened wage, not one flat $/sf claim: see /methodology/.
- Free Roofing Calculator (Square Feet)Get roof square footage and squares from footprint and pitch, free: slope-factor math shown, honest waste ranges given instead of one fake precise number.
- Hip Roof Framing CalculatorHip rafters run longer per foot of run than common rafters, so this calculator uses the larger hip factor to keep your lengths from being quietly understated.
- Metal Roofing CalculatorRoof area from your footprint and pitch (slope factor √(1+(rise/12)²)), panel counts from real coverage widths, and the waste drivers named. No fake precision.
- Metal Roofing Price CalculatorNo flat “$X per square” claim: this models metal roofing cost as burdened roofer labor plus material takeoff, an honest planning band. See /methodology/.
- Roof Framing CalculatorGet exact common rafter length from run, rise, and overhang using pure slope-factor geometry. Rafter sizing stays with your code's IRC R802 span tables.
- Roofing Dumpster CalculatorRoof squares from footprint and pitch, then tear-off debris weight by layer: honest trade-convention weight bands, not a fake precise number, to size the bin.
- Roofing Labor Cost CalculatorRoofing labor cost modeled as burdened wage times markup, not a flat $/square guess. Workers comp swings roofing cost more than region does. See /methodology/.
- Roofing Material CalculatorRoofing material takeoff done right: shingle bundles plus ridge cap, starter strip, and underlayment as separate line items, honest ranges instead of one number.
- Roofing Nail CalculatorNail count from your actual square count and fastening pattern: 4 vs 6 nails/shingle changes the total by 50%, shown honestly instead of one flat figure.
- Satellite Roofing CalculatorNot an aerial-imagery report: this tool computes roof area from footprint and pitch honestly, and explains when a paid satellite measurement is worth it.
- Steel Roofing CalculatorSteel roof area from footprint and pitch, plus the two steel-specific traps (net coverage width and low-slope end-laps): honest ranges, not fake precision.
- TPO Roofing Cost CalculatorTPO seams are hot-air welded, not taped: that skill requirement shows up in labor, not material. A modeled cost band, not one flat number. See /methodology/.
Framing & Drywall
Framing & Drywall Calculators7 tools
Stud counts that match the lumber package, plus mud, tape, and screws by the thousand square feet. Visit the Framing & Drywall hub for the full guide.
- Basement Framing Cost CalculatorBasement stud framing priced with the same burdened-wage labor chain as any wall: a modeled band, not a flat number, with assumptions at /methodology/.
- Drywall Finishing Cost CalculatorFinish level (GA-214, Level 0-5) drives labor hours more than material quantity does: see a modeled burdened-wage labor band at /methodology/.
- Drywall Mud CalculatorGet joint compound, tape, and screw quantities from your board area, using the per-1000-sq-ft baseline: ~10 gallons compound, ~350 lf tape, ~1,250 screws.
- Framing Cost CalculatorWall-framing cost modeled as burdened carpenter wage × markup, not a flat $-per-linear-foot guess: see the full assumption chain at /methodology/.
- Interior Wall Framing Cost CalculatorSize a non-load-bearing partition wall and see a modeled labor band from a burdened carpenter wage, plus material quantity. Full chain at /methodology/.
- Stud Calculator for FramingGet an exact stud count from wall length and OC spacing, then see labeled corner, opening, and plate adders kept separate from the arithmetic.
- Wall Framing Calculator with Windows and DoorsSee how each window or door opening adds king studs, jack studs, and cripples on top of exact spacing math: labeled as a trade convention, not code.
Gravel & Mulch
Gravel & Mulch Calculators8 tools
Yards, bags, and honest tonnage for gravel, stone, and mulch; the quarry scale gets the last word. Visit the Gravel & Mulch hub for the full guide.
- #57 Gravel CalculatorFigure #57 gravel volume for a compacted driveway or drain base, with the standard 10-20% compaction allowance and a labeled tonnage band, not a guess.
- French Drain Gravel CalculatorSize the gravel envelope around a perforated drain pipe from trench length, width, and a 12-inch depth default, with fabric-lining and compaction notes.
- Gravel Calculator: Cubic FeetGet gravel volume in cubic feet for small jobs like planters or post holes, using the same area-times-depth math suppliers use for yardage, in a smaller unit.
- Gravel Calculator (Cubic Yards)Convert your gravel area to cubic yards instantly: yd³ = sq ft × depth ÷ 324. Honest tonnage bands (density varies ±15%), bag counts, and sourced assumptions.
- How Many Bags of Mulch Do I Need?Answer the bag question directly: enter your bed size and depth and get a whole-bag count of 2-cubic-foot bags, built on the 13.5-bags-per-yard conversion.
- Mulch Calculator: BagsConvert your bed area into 2-cubic-foot mulch bags: 13.5 bags per cubic yard, whole-bag rounding, and the depth that actually determines your count.
- Playground Mulch CalculatorCPSC guidance recommends 9 inches of loose-fill wood mulch for fall protection under play equipment. Size that depth here, plus a compression allowance.
- Rubber Mulch CalculatorRubber mulch sells in 0.5 cu ft bags by weight, not volume: convert your bed area and depth into a bag count here, with a note on migration and durability.
Lumber
Lumber Calculators4 tools
Board feet, prices, and real weights, with the nominal-versus-actual trap stated instead of blurred. Visit the Lumber hub for the full guide.
- Board Foot Price CalculatorMultiply board feet by your own price per board foot: hardwood costs vary too much by species, grade, and region for us to publish a number. Enter yours.
- Linear Foot to Board Foot CalculatorConvert linear feet to board feet with bf/lf = (thickness x width) / 12. A 2x6 works out to exactly 1 board foot per linear foot, at any length, no rounding.
- Lumber Cost CalculatorTurn board feet into a total price at your own $/bf rate, benchmarked against a sampled 2x4x8 stud retail price for context. Full sourcing at /methodology/.
- Lumber Weight CalculatorEstimate lumber weight from actual dressed dimensions and a species density band. A stated 2x4 measures 1.5 by 3.5 inches milled, not the nominal size.
Paint & Coatings
Paint & Coatings Calculators3 tools
Gallon counts from the real coverage range, for walls, pools, and industrial coatings. Visit the Paint & Coatings hub for the full guide.
- Industrial Paint CalculatorIndustrial and DTM coatings cover roughly 200-400 sq ft per gallon, but only at the manufacturer's specified dry film thickness. Always verify against the PDS.
- Paint Labor Cost CalculatorSee a painter's BLS median wage move through burden and markup to a modeled $35-$58/hr charged rate, decomposed step by step, not a flat guess.
- Pool Paint CalculatorPool and masonry coatings cover roughly 150-300 sq ft per gallon, about half of wall paint's range, because porous surfaces absorb far more of the coating.
Decking
Decking Calculators5 tools
Stain, materials, and cost math done honestly; structural questions sent to code tables where they belong. Visit the Decking hub for the full guide.
- Deck Builder Cost CalculatorSee what's actually inside a deck builder's bid (burdened wage, overhead, and profit) and why two honest bids for the same deck can differ sharply.
- Deck Building Price CalculatorDeck price bands move on size, material class, and site conditions, not a single average. See the NAHB-anchored cost structure behind the number honestly.
- Deck Construction Cost CalculatorCount deck boards, joist spacing, and screws first, then see a modeled labor band next to a sampled stud price. Built for DIYers pricing their own build.
- Deck Labor Cost CalculatorLabor-only deck cost: a published carpenter wage run through burden and markup, scaled by crew-hours; see what actually moves the number, not materials.
- Deck Stain CalculatorFirst-coat deck stain covers roughly 150-300 sq ft per gallon. Weathered wood drinks more, sun-facing boards wear fastest, and a second coat spreads further.