Calculators
How much material the job takes
22 calculators for the jobs people measure before they price — about 7.9 million searches a month between them. Each one ends in real product, in the sizes the material is actually sold in, and prices it on the same page.
22 live · 0 in build · Updated 2026-09-16
Asking what a job costs rather than how much material it takes? 116 more jobs are priced on their own pages — and every one of those carries a calculator too.
What things costThe calculators
- ConcreteYards, bags, rebar and joints for slabs, footings and piers.Slab · Footing · Bags · Round pier
- Concrete slabYards with the thickened edge, base, barrier, steel and joint layout.Concrete pad · Control joints · Rebar · Thickness
- StairsRisers, treads, stringer length and the code checks, with a scale diagram.Stringers · Risers · Rise and run · Deck stairs
- Board feetVolume, weight and price of lumber, plus the three log rules that disagree.Nominal vs actual · Hardwood quarters · Lumber weight · Log scaling
- Square footageArea and volume for any shape, in the units the job uses.Cubic feet · Cubic yards · Acres · Linear feet
- BTU / HVAC sizingHeating and cooling load by room, climate zone and insulation.AC tonnage · Furnace size · Heat pump
- Roof pitchRise and run, degrees, grade and the area multiplier, in both directions.Pitch to degrees · Area multiplier · Measuring it
- PaintGallons by coat and substrate, not one flat spread rate.Interior · Coverage · Garage epoxy
- Recessed lightingHow many, how far apart, the layout drawn to scale, and what it costs installed.Spacing · Layout · Installed cost · Circuits
- SolarReal production from your roof's orientation, with every loss between nameplate and meter.Panel angle · How many panels · Installed cost · Payback
- Wire sizeAmpacity and voltage drop together, and the distance at which the answer changes.Voltage drop · 12 V and DC · AWG table · Ground wire
- RampsThe footprint with every landing counted, folded into a switchback when it will not fit.Wheelchair ramps · At a private home · Landings and turns · What it costs
- Stud / framingStuds, plates, headers and sheathing, counted the way a framer counts them — and the cost.Framing calculator · Basement framing · Headers · Framing cost
- Concrete blockBlocks, pallets, mortar, core fill, rebar and footing — and what the wall costs to build.Cinder block · Mortar · Block wall cost · Blocks per pallet
- WallpaperIn whole rolls, with the pattern repeat — because paper is not sold by the foot.Pattern repeat · How many rolls · Match types · Hanging cost
- Pool saltHow many bags — and how often the honest answer is none.Startup dose · Reading ppm · By cell brand · Too much salt
- Pool volumeGallons from the shape of the floor, not from an average of two depths.In gallons · Kidney and freeform · Above ground · Salt dosing
- DeckBoards from real stock lengths, framing, stairs and 25-year cost.Deck boards · Stairs · Composite · Framing
- AsphaltTons by compacted depth, plus seal, overlay or rebuild priced side by side.Tonnage · Driveway · Millings · Sealcoating
- GravelTons or yards by stone type, at the compacted depth.Crushed stone · Pea gravel · Driveway
- Rubber mulchBags or tons, the playground depth and use zone, and ten years against wood.Playgrounds · Bags · By the ton
- MulchYards or bags, with last year's mulch subtracted and bulk compared to bags.Bags · Bulk yards · Coverage
In build
Listed in the order they will ship, which is the order of the demand they answer. A calculator appears here before it exists so you can see what is coming — and it is deliberately not linked, because a link to a page that is not finished is just a dead end with good intentions.