137 internally tested tools across 13 planning categories.
Construction calculators.
137 internally tested tools in one library — search by trade or open a category. Formula ID, waste and rounding stay on every page. Free. Account optional.
137 internally tested tools available across 13 planning categories.
17 tools
Concrete calculators
Concrete quantities, curb-and-gutter, rebar grids, wire mesh, post holes, sonotubes, stairs, volumetric mix parts, ready-mix planning, bags, weight and material cost references.
Steel weight calculator
Rebar mass per metre, per bar and for a stated bar count from nominal diameter and steel density.
Open calculatorConcrete slab calculator
Volume, ready-mix order, and bag equivalent for a rectangle, circle, or L-shape.
Open calculatorConcrete footing calculator
Continuous footing volume, ready-mix quantity, and whole-bag equivalent.
Open calculatorConcrete wall calculator
Concrete wall volume with stated thickness, waste, and ready-mix rounding.
Open calculatorConcrete column calculator
Round concrete-column volume, ready-mix order and bag-equivalent estimate.
Open calculatorConcrete driveway calculator
Driveway volume, ready-mix order and bag-equivalent estimate with visible allowance.
Open calculatorConcrete patio calculator
Patio slab volume, ready-mix order and bag-equivalent estimate with visible allowance.
Open calculatorConcrete bag calculator
Slab volume translated into a whole-bag purchase quantity using the stated bag yield.
Open calculatorConcrete cost calculator
Preliminary material cost from a stated ready-mix quantity and local supplier rate.
Open calculatorRebar calculator
Preliminary slab rebar count, linear footage and bar-weight planning from spacing, cover and bar size.
Open calculatorPost hole calculator
Concrete volume and bag count for round fence or deck post holes, including solid sonotube piers when post diameter is zero.
Open calculatorConcrete mix calculator
Volumetric cement, sand and aggregate split from a known wet volume using a stated mix ratio and dry-volume factor.
Open calculatorConcrete stairs calculator
Triangular-step volume, ready-mix order and bag equivalent from riser, tread, width and count.
Open calculatorCurb and gutter calculator
Combined curb-and-gutter volume, ready-mix order and bag equivalent from run length and the two cross-section rectangles.
Open calculatorWire mesh calculator
Welded-wire mesh sheet count from slab area and the face coverage of one sheet, with overlap sitting in the waste field.
Open calculatorConcrete weight calculator
Concrete tons from a stated volume and an editable density. Ready-mix yards stay the slab tool.
Open calculatorSonotube calculator
Solid cardboard-tube volume, ready-mix order and bags. Post-hole annulus is a different tool when a post occupies the hole.
Open calculator7 tools
Masonry calculators
Concrete block, brick, mortar bags, CMU grout fill, retaining-block and stone-veneer quantities with nominal face sizes kept visible.
Plaster cement and sand calculator
Wall plaster cement bags and dry sand volume from net wall area, thickness and an entered volume mix.
Open calculatorConcrete block calculator
CMU count and mortar-bag planning from wall area, opening deductions and nominal block face size.
Open calculatorBrick calculator
Brick count and mortar-bag planning from wall area, opening deductions and nominal brick face size.
Open calculatorMortar calculator
Type N/S mortar volume and bag count from net wall area using a published 5.5 ft³ per 100 ft² rule of thumb.
Open calculatorRetaining wall block calculator
SRW and garden-block count from exposed face area and the selected block face.
Open calculatorStone veneer calculator
Manufactured-stone carton count from net face area and the coverage printed on the carton.
Open calculatorCMU grout fill calculator
Grout volume and 80 lb bag equivalent to fill CMU cores from wall face, block module and grout per block.
Open calculator16 tools
Roofing calculators
Pitch, shingle, hip, panel, underlayment, ice-and-water, sheathing, drip edge, starter strip, ridge vent, flashing, ridge cap, waste, snow-load planning and cost planning.
Waterproofing membrane calculator
Membrane roll quantities with explicit side and end laps, layers, upstand area and cutting allowance.
Open calculatorRoofing calculator
Pitched roof area, squares, type-specific shingle bundles and underlayment rolls.
Open calculatorRoof pitch calculator
Roof pitch multiplier and slope angle from rise per 12 units of run.
Open calculatorMetal roof calculator
Pitched roof area and whole fixed-panel quantity using net area per selected panel.
Open calculatorRoofing underlayment calculator
Pitched roof area and whole underlayment-roll quantity using stated roll coverage.
Open calculatorRoof flashing calculator
Whole flashing-piece quantity from required linear coverage and a visible allowance.
Open calculatorRoofing waste calculator
Add a stated roofing waste allowance to an independently measured roof area.
Open calculatorRoofing cost calculator
Preliminary roofing material cost from stated area, allowance and user-entered local rate.
Open calculatorRidge cap calculator
Hip and ridge cap bundles from measured ridge and hip length plus the selected bundle's linear coverage.
Open calculatorIce and water shield calculator
Self-adhered ice-and-water roll count from eave length, coverage up the roof and valley length.
Open calculatorRoof sheathing calculator
Plywood or OSB sheet count from roof footprint, pitch multiplier and sheet coverage.
Open calculatorDrip edge calculator
Drip-edge piece count from eave run plus rake run, divided by the stock length you will buy.
Open calculatorStarter strip calculator
Starter-shingle bundle count from total eave length and the linear coverage printed on the starter bundle.
Open calculatorRidge vent calculator
Ridge-vent piece count from ridge length and the coverage of one vent section. Not a ventilation design.
Open calculatorHip roof calculator
Hip-roof area, squares and hip run from footprint, pitch and overhang. Gable shingles stay the roofing calculator.
Open calculatorSnow load calculator
Planning snow load in pounds from roof area and a stated ground snow load. Not a PE stamp.
Open calculator3 tools
HVAC calculators
Planning heating load and airflow from floor area, ceiling height, a stated BTU factor and air changes per hour. Not a load calc, duct design or equipment size.
AC tonnage calculator
Compare an entered cooling-load scenario in kW, BTU/h and refrigeration tons. Includes an editable area factor.
Open calculatorFurnace BTU calculator
Planning heating load from floor area, ceiling height and a stated BTU per square foot. Not Manual J.
Open calculatorCFM calculator
Planning airflow from room volume and air changes per hour. Not a duct design or Manual D.
Open calculator13 tools
Flooring calculators
Floor coverage, packages, tile, grout, thinset, epoxy, self-level, cement board, subfloor, carpet, underlayment, waste, and cost tools.
Flooring calculator
Floor area and purchase packages with a clear waste allowance.
Open calculatorTile calculator
Floor tile coverage and whole-package quantity with a visible cut allowance.
Open calculatorLaminate flooring calculator
Laminate floor coverage and whole-carton quantity with stated waste.
Open calculatorVinyl flooring calculator
Vinyl flooring coverage and whole-package quantity with a visible allowance.
Open calculatorCarpet calculator
Carpet area in square feet or metres, square-yard equivalent, and optional whole-roll or cut conversion.
Open calculatorFlooring underlayment calculator
Underlayment coverage and whole-roll quantity with stated lap allowance.
Open calculatorFlooring cost calculator
Preliminary flooring material cost from measured area, visible allowance and user-entered rate.
Open calculatorTile grout calculator
Grout volume and bag count from tile size, joint width, joint depth and floor area.
Open calculatorThinset calculator
Thinset or tile-mortar bag count from tiled area, selected trowel coverage and a visible mixing allowance.
Open calculatorEpoxy floor calculator
Whole gallons of floor epoxy from garage or shop area, coats and the labelled coverage.
Open calculatorCement board calculator
Cement-board sheet count from wet-area floor or wall coverage and the face of one sheet.
Open calculatorSubfloor calculator
Tongue-and-groove subfloor sheet count from floor area and the face of one panel.
Open calculatorSelf-leveling calculator
Self-leveling bags from floor area, pour depth and the bag yield printed on the sack.
Open calculator8 tools
Painting calculators
Paint coverage, primer, exterior elevations, trim enamel, coats, opening deductions, wallpaper rolls, and rounded purchase quantities.
Paint calculator
Room wall area, opening deductions, coats and rounded paint purchase quantity.
Open calculatorWall paint calculator
Straight-wall paint coverage, coats, allowance and whole-gallon purchase quantity.
Open calculatorCeiling paint calculator
Ceiling paint coverage, coats, allowance and whole-gallon purchase quantity.
Open calculatorPaint cost calculator
Preliminary finish-paint material cost from whole gallons, a stated rate and visible allowance.
Open calculatorWallpaper calculator
Single-roll count from room perimeter, ceiling height, opening deductions and the usable coverage printed on the roll.
Open calculatorPaint primer calculator
Primer gallons from room walls, openings, coats and labelled primer coverage. Finish paint is a different tool.
Open calculatorExterior paint calculator
Exterior-paint gallons from wall length, height, openings, coats and labelled coverage. Interior rooms use the paint calculator.
Open calculatorPaint trim calculator
Trim-paint gallons from linear footage, coats and labelled linear coverage per gallon.
Open calculator5 tools
Painting & drywall calculators
Drywall sheets, joint compound, fasteners, tape, and transparent opening deductions.
Drywall calculator
Room drywall sheets, fasteners, compound and tape with visible opening deductions and purchase rounding.
Open calculatorDrywall cost calculator
Preliminary drywall-sheet material cost from stated sheet quantity, rate and visible allowance.
Open calculatorDrywall screw calculator
Screw count and 1,000-count box round-up from sheet count.
Open calculatorDrywall mud calculator
Ready-mix joint-compound gallons and 4.5 gal pail count from net board area using a 100 ft² per gallon taping-and-finish rule of thumb.
Open calculatorDrywall tape calculator
Joint-tape rolls from net board area using a stated linear-feet-per-square-foot rule of thumb.
Open calculator20 tools
Landscaping calculators
Mulch, soil, fill dirt, gravel, cut-and-fill, dump-truck loads, road base, driveway stone, sand, sod, seed, river rock, paver, paver base, french drain, pool volume, landscape fabric, asphalt sealer and asphalt quantities.
Mulch calculator
Landscape bed volume, bulk mulch order, and whole-bag equivalent.
Open calculatorSoil calculator
Bulk soil volume with a visible depth allowance and purchase rounding.
Open calculatorGravel calculator
Bulk gravel volume, estimated weight, and a visible delivery allowance.
Open calculatorSod calculator
Lawn area, waste allowance, and whole-roll sod purchase quantity.
Open calculatorPaver calculator
Patio area, individual paver face coverage, and whole-paver order quantity.
Open calculatorAsphalt calculator
Compacted asphalt volume and tonnage from area, depth and a stated mix density.
Open calculatorSand calculator
Bulk sand volume and tonnage from area, installed depth, a visible compaction factor and supplier density.
Open calculatorPaver base calculator
Crushed-stone base and bedding-sand volumes under a patio from area, base thickness and sand thickness.
Open calculatorPolymeric sand calculator
Bag count of joint sand from patio area and the coverage printed on the polymeric-sand bag.
Open calculatorGravel driveway calculator
Driveway gravel volume and tonnage from length, width, compacted depth and supplier density.
Open calculatorGrass seed calculator
Pounds of seed from lawn area and the labelled rate per 1,000 square feet.
Open calculatorRiver rock calculator
Decorative river-rock volume and tonnage from bed area, installed depth and supplier density.
Open calculatorFrench drain calculator
Drainage-stone volume, pipe length and wrap-fabric area from trench length, width, depth and pipe diameter.
Open calculatorPool volume calculator
US gallons of water in a rectangular or circular pool from plan size and average depth. Not a chemical dose.
Open calculatorFill dirt calculator
Fill-dirt volume and tonnage from area and compacted depth, with swell sitting in the waste field.
Open calculatorLandscape fabric calculator
Weed-barrier roll count from bed area and the net coverage of one roll after overlap.
Open calculatorAsphalt sealer calculator
Whole gallons of driveway sealer from area, coats and the labelled coverage per gallon.
Open calculatorRoad base calculator
Crusher-run or class II base volume and tonnage from driveway or pad area, compacted depth and supplier density.
Open calculatorCut and fill calculator
Cut volume, fill volume and net import or export from pad length, width and depths. Not a grading design.
Open calculatorDump truck calculator
Whole dump-truck loads from a stated material volume and truck capacity.
Open calculator15 tools
Lumber & framing calculators
Board feet, stairs, deck boards, deck stain, shiplap, wainscoting, baseboard, crown, ramps, balusters, studs, joists, rafters, linear lumber, and sheet goods.
Board feet calculator
Lumber board-foot quantity from stated thickness, width, length, piece count and allowance.
Open calculatorWall stud calculator
Preliminary wall-stud count from wall run, spacing, openings and a visible allowance.
Open calculatorFloor joist calculator
Preliminary joist count and total linear footage from framing run, span and stated spacing.
Open calculatorRafter calculator
Preliminary paired-rafter count and rafter length from roof plan dimensions, pitch and spacing.
Open calculatorLinear lumber calculator
Whole stock-board count from total linear run, selected stock length and visible allowance.
Open calculatorPlywood calculator
Whole sheet-goods quantity from rectangular coverage, selected sheet coverage and allowance.
Open calculatorStair calculator
Preliminary riser count, tread run and stringer length from total rise and target step dimensions.
Open calculatorDeck board calculator
Deck-board count and linear footage from deck size, board width, gap and stock length.
Open calculatorBaseboard calculator
Stock-length sticks of baseboard from room perimeter after door deductions, with a visible cutting allowance.
Open calculatorCrown molding calculator
Stock-length sticks of crown from the full room perimeter, with extra waste for coped inside corners.
Open calculatorWheelchair ramp calculator
Ramp run length and slope percent from total rise and a stated slope ratio. Planning geometry only — not an ADA approval.
Open calculatorBaluster spacing calculator
Baluster count and clear gap for a run between posts, using a maximum opening you can set. Default 4 in is the common sphere-rule planning figure, not a code stamp.
Open calculatorDeck stain calculator
Whole gallons of deck stain from deck area, coats and the coverage printed on the can.
Open calculatorShiplap calculator
Shiplap board count from wall width, height and the exposed face after overlap, rounded to whole sticks of the stock length you buy.
Open calculatorWainscoting calculator
Stock-length sticks of wainscot from room perimeter after door deductions, with the chair-rail height kept visible for area.
Open calculator5 tools
General estimating calculators
Visible waste, markup, tax, contingency and joint-sealant calculations for an estimate.
Material waste calculator
Add a transparent waste allowance to any measured material quantity.
Open calculatorMarkup calculator
Convert direct cost and a stated markup into a transparent customer price.
Open calculatorConstruction tax calculator
Calculate tax as a separately stated percentage of a taxable amount.
Open calculatorContingency calculator
Set aside a visible contingency allowance for preliminary project planning.
Open calculatorCaulk calculator
Cartridge count from joint run and the linear coverage printed for one tube at the bead you will gun.
Open calculator7 tools
Utilities calculators
Reusable area, volume, acreage, grade, trench excavation, 3-4-5 layout check, pipe volume, and length-conversion utilities for field planning.
Square footage calculator
Rectangle, circle and triangle geometry with area, perimeter and simple-prism volume displayed in multiple units.
Open calculatorFeet to meters converter
Transparent source-to-target length conversion with side-by-side feet and metres equivalents.
Open calculatorTrench volume calculator
Geometric trench volume with an optional project-specific loose-volume or over-excavation factor and stated truck capacity.
Open calculatorAcreage calculator
Acres, square feet and hectares from a rectangular tract. Not a survey.
Open calculatorSlope calculator
Slope percent, ratio and angle from rise and run. Planning geometry only — not a drainage design.
Open calculator3-4-5 square calculator
Diagonal of a rectangle so a layout can be squared in the field. Planning geometry only.
Open calculatorPipe volume calculator
Pipe gallons and cubic feet from inside diameter and length. Not a flow or plumbing-code design.
Open calculator8 tools
Fencing calculators
Wood-fence pickets, privacy boards, vinyl panels, aluminum sections, chain-link fabric, stain gallons, gate kits, post caps, posts, rails, and post-hole concrete with spacing kept visible.
Fence calculator
Wood-fence posts, rails, pickets and post-hole concrete bags from run length and spacing.
Open calculatorChain-link fence calculator
Chain-link fabric rolls, line posts, terminal posts and top-rail pieces from run length and spacing.
Open calculatorVinyl fence calculator
Vinyl panels, posts and caps from run length, panel width and gate openings.
Open calculatorFence stain calculator
Fence-stain gallons from run length, height, faces stained and labelled coverage.
Open calculatorFence gate calculator
Gate kits, gate posts and latch hardware from opening count and width. Not a fence-run takeoff.
Open calculatorAluminum fence calculator
Aluminum panels, posts and rails from run length, section width and a measured gate opening.
Open calculatorPrivacy fence calculator
Solid privacy boards and posts from run length, board face and spacing. Picket-gap wood fence is a different count.
Open calculatorFence post cap calculator
Post-cap count from the posts you will set, plus a visible spare allowance.
Open calculator13 tools
Exterior calculators
Siding squares, vinyl starter and J-channel, house wrap, rigid foam, board-and-batten, soffit, fascia, batt and blown-in insulation, stucco bags, gutter and downspout counts.
Siding calculator
Wall and gable siding area after openings, then squares and coverage units with a visible allowance.
Open calculatorInsulation calculator
Batt or roll count from net coverage area, product coverage and a visible cutting allowance.
Open calculatorBlown-in insulation calculator
Minimum whole-bag count from net area and the exact product, application and R-value chart's minimum-bags-per-1,000-ft² rate; optional extra stays separate.
Open calculatorStucco calculator
Stucco bag count from net wall area, number of coats and the selected bag's coverage per coat.
Open calculatorGutter calculator
Gutter and downspout piece counts from eave length, stock piece length and downspout runs.
Open calculatorHouse wrap calculator
Weather-resistive-barrier roll count from wall perimeter, height, opening deductions and the net coverage of one roll.
Open calculatorBoard and batten calculator
Board count and batten count from wall width, the exposed board face and a batten at each joint including the ends.
Open calculatorSoffit calculator
Soffit panel count from eave length, soffit width and the face of one panel.
Open calculatorFascia board calculator
Fascia-board sticks from eave plus rake run, rounded to the stock length you will buy.
Open calculatorVapor barrier calculator
Poly roll count from floor or crawl area and the net coverage of one roll after the labelled lap.
Open calculatorDownspout calculator
Downspout count from eave length and spacing, plus the number of stock pieces for the drop to grade.
Open calculatorFoam board calculator
Rigid-foam sheet count from wall area after openings and the face of one panel.
Open calculatorVinyl siding calculator
Vinyl-siding squares, starter pieces and J-channel from wall area after openings.
Open calculator