Construction · Index
All calculators
Every calculator on the site, grouped by trade. Imperial or metric on every page.
01 Concrete
- Concrete volume calculatorslabs · columns · footings
- Concrete bag calculator40 · 60 · 80 lb compared
- Sonotube volume calculatorround footings · frost depth · bags
- Concrete weight calculatorpounds · tons · dead load · hauling
- Rebar spacing calculatorbar count · ties · chairs · weight
- Concrete countertop calculatorGFRC vs solid cast · bags · finished weight
- Fence post calculatorconcrete per hole · depth by frost · bags
- Cubic yards to bags calculatorbags per yard by size · standard & fast-set
- Concrete bag yieldsyield in ft³ & m³ by bag size · per-pound constant
- Ready-mix vs bagged concretebreak-even volume from your prices · short-load fee · labor ceiling
- Concrete slab thickness4 in default · 5–6 in reinforced for heavy vehicles · cost of an extra inch
- Concrete curing timestrength at 1 · 3 · 7 · 14 · 28 days · ACI 209R-92 model · psi or MPa
- Concrete cylinder volume calculatorpiers & columns · belled base frustum · bags & ready-mix
02 Lumber & framing
- Deck materials calculatorjoists · decking · posts · railing
- Board foot calculatorboard feet · nominal vs actual · $/bf vs $/lin ft
- Stair calculatorrisers · treads · stringer · IRC check
- Wall framing calculatorstuds · plates · headers · cripples
- Lumber dimensions chartnominal vs actual · inches & mm · PS 20
- Floor joist span table4 species side by side · #2 · 16 in oc · IRC R502.3.1(2)
- Screws vs nails for framingcode-allowable applications · IRC R602.3(1) · nail take-off
- What is a board foot?definition · formula · nominal vs actual · hardwood surface measure
- Stud count calculator12 · 16 · 24 in oc side by side · closing stud · corner & partition backing
- Trim calculatorbaseboard less doorways · crown full perimeter · casing per face · sticks
03 Drywall
- Drywall calculator4×8 · 4×10 · 4×12 + mud
- Drywall mud calculatorready-mix vs setting-type · buckets · bags
- Insulation R-value calculatorsettled depth by material · bags · batt compression
04 Paint
- Paint calculatorsurface-adjusted coverage
- Wallpaper calculatorrolls by the drop · pattern repeat · batch note
- Deck stain calculatorsemi-transparent vs solid · second-coat coverage · weathered wood
- How much paint do I need?gallons · the can-vs-wall coverage gap · gallons plus quarts
05 Tile
- Tile calculatorwaste by pattern · grout joint
- Grout calculatorvolume by tile size · joint · thickness
- Thinset calculatorbag count by trowel notch size
- Underlayment calculatorcement board · DITRA · plywood by application
06 Flooring
- Flooring calculatorplank waste by board length
- Carpet calculatorroll width · seams · square yards
- Vinyl plank calculatorcartons · transitions · expansion gap
07 Roofing
- Roof shingles calculatorpitch factor · bundles · ridge cap
- Rafter length calculatorrise/run · ridge deduction · overhang
- Roof pitch calculatorrise/run · degrees · pitch factor
- Measure roof pitchlevel drop · phone angle · rise-in-12
- Siding square footage calculatorgable area from pitch · squares · waste
- Soffit and fascia calculatoreave vs rake linear feet · pitch factor · panels
08 Masonry
- Brick calculatormodular · queen · utility compared
- Concrete block wall calculator8×8×16 · half-blocks · mortar bags
- Retaining wall block calculatorblocks · caps · drainage gravel · base
- Stucco coverage calculatorscratch · brown · finish coats · bags