Construction Calculators

Concrete Slab Calculator

Calculate concrete volume and bags for slabs, patios, and driveways

Concrete Footing Calculator

Calculate concrete for rectangular and round footings

Sonotube Calculator

Calculate concrete for Sonotube cardboard forms

Concrete Block Fill Calculator

Calculate concrete fill for CMU block walls and cores

Concrete Bag Calculator

Calculate how many bags of concrete you need for any project

Post Hole Concrete Calculator

Calculate concrete for fence posts, deck posts, and mailboxes

Concrete Stair Calculator

Calculate concrete volume, rebar, and formwork needed for poured concrete stairs

Retaining Wall Calculator

Calculate blocks, backfill, and materials for retaining walls

Rebar Calculator

Calculate rebar bars, linear feet, and weight for concrete slabs

Mortar Calculator

Calculate mortar bags, sand, and water for masonry projects

Brick Calculator

Calculate bricks, mortar, and wall ties for any wall

CMU Wall Calculator

Calculate concrete masonry units, mortar, rebar, and fill for block walls

Shingle Calculator

Calculate roofing shingles, underlayment, and nails needed for your roof

Metal Roofing Calculator

Calculate metal roofing panels, ridge cap, trim, and screws for any roof

Roof Pitch Calculator

Convert between rise/run, pitch, and degrees instantly

Rafter Length Calculator

Calculate rafter length, ridge height, and birdsmouth cuts

Wall Stud Calculator

Calculate studs, plates, headers, and lumber for framing walls

Stair Stringer Calculator

Calculate risers, treads, and stringer length to code

Stair Rise and Run Calculator

Calculate stair dimensions that meet building code for rise, run, and headroom

Floor Joist Span Calculator

Find maximum allowable joist spans based on species, grade, size, and spacing

Beam Span Calculator

Calculate required beam size for structural spans based on load and tributary area

Plywood Sheet Calculator

Calculate plywood sheets and cost for any project

Header Size Calculator

Determine the correct header size for door, window, and garage openings

Drywall Calculator

Calculate drywall sheets, tape, mud, and screws for any room

Joint Compound Calculator

Calculate joint compound, tape, and drywall finishing materials for your project

Paint Calculator

Calculate gallons of paint for walls and ceilings with waste and cost

Tile Calculator

Calculate how many tiles you need for any room or area

Grout Calculator

Calculate exactly how much grout you need for any tile job

Thinset Calculator

Calculate thinset mortar bags for any tile installation

Hardwood Flooring Calculator

Calculate how much hardwood flooring you need for any room

Laminate Flooring Calculator

Calculate laminate flooring planks, boxes, and cost for any room

Vinyl Plank Flooring Calculator

Calculate LVP or LVT vinyl plank flooring for any room

Carpet Calculator

Calculate carpet square yards, linear feet, and padding for any room

Epoxy Floor Calculator

Calculate gallons, kits, primer, and cost for epoxy floor coatings

Backsplash Tile Calculator

Calculate kitchen backsplash tile, boxes, and cost

Wood Fence Calculator

Calculate posts, rails, pickets, and hardware for wood fences

Chain Link Fence Calculator

Calculate mesh, posts, rails, and fittings for chain link fences

Deck Board Calculator

Calculate deck boards, screws, and joists for your deck

Deck Stair Calculator

Calculate deck stair risers, treads, stringers, and lumber needed

Deck Footing Calculator

Calculate footings, concrete, and Sonotube sizes for your deck

Baluster Spacing Calculator

Calculate equal baluster spacing that meets building code

Batt Insulation Calculator

Calculate fiberglass or mineral wool batt insulation for walls, floors, and attics

Blown-In Insulation Calculator

Calculate bags, depth, and cost for blown-in fiberglass or cellulose

Spray Foam Insulation Calculator

Calculate spray foam insulation coverage, board feet, and kits needed for your project

Drain Pipe Slope Calculator

Calculate minimum drain pipe slope and total fall per IPC code

Water Heater Sizing Calculator

Find the right water heater size based on household demand

Tankless Water Heater Calculator

Size the right tankless water heater based on flow rate, temperature rise, and fixtures

Pipe Sizing Calculator

Size water supply pipes by fixture units, flow rate, and material

Wire Size Calculator

Find the right wire gauge for any circuit based on NEC ampacity and voltage drop

Voltage Drop Calculator

Calculate voltage drop across wire runs to ensure NEC compliance

Conduit Fill Calculator

Check NEC conduit fill percentages for any combination of wires

Breaker Sizing Calculator

Determine the correct circuit breaker size per NEC load rules

BTU Calculator

Calculate heating and cooling BTUs needed for any room or space

Duct Sizing Calculator

Calculate round and rectangular duct sizes based on CFM and velocity

AC Tonnage Calculator

Calculate the right air conditioner size in tons and BTU for your home

Mini Split Calculator

Size ductless mini-split systems for any room or zone

CFM Calculator

Calculate airflow in cubic feet per minute for HVAC ducts, fans, and ventilation

Mulch Calculator

Calculate mulch volume and bags for any landscaping project

Gravel Calculator

Calculate gravel volume, weight, and cost by type

Topsoil Calculator

Calculate topsoil volume, weight, and delivery loads

Sand Calculator

Calculate sand volume, weight, and bags for any project

Sod Calculator

Calculate sod pieces, pallets, and cost for any lawn area

Paver Calculator

Calculate pavers, pallets, sand base, and polymeric sand for any patio or walkway

Grass Seed Calculator

Calculate how much grass seed you need for new lawns or overseeding

Gutter Size Calculator

Calculate gutter size, downspout count, and drainage capacity for your roof

French Drain Calculator

Calculate gravel, pipe, fabric, and excavation for French drain installation

Excavation Calculator

Calculate excavation volume, dirt removal, and hauling costs for any dig project

Fill Dirt Calculator

Calculate fill dirt volume with compaction factor

Pool Volume Calculator

Calculate swimming pool water volume in gallons for any pool shape

Pool Chemical Calculator

Calculate chlorine, pH adjusters, alkalinity, and stabilizer doses for your pool

Generator Sizing Calculator

Calculate backup generator wattage based on your appliances and electrical loads

Shed Material Calculator

Calculate lumber, sheathing, roofing, and hardware for building a shed

Cubic Yards Calculator

Convert any shape dimensions to cubic yards instantly

Asphalt Calculator

Calculate asphalt tonnage and cost for any paving project

Stucco Calculator

Calculate stucco bags, lath, and materials for any wall area

Welding Rod Calculator

Calculate welding rod and electrode quantities for any weld joint

Concrete Driveway Calculator

Calculate concrete volume, cost, and materials for driveway projects