What every result keeps visible
- Formula ID, version, internal QA status and planning boundary.
- Inputs, assumptions, allowance and purchase-rounding effect.
- Editable estimate costs that remain distinct from material quantity.
5 tested tools in painting & drywall
Painting & drywall calculators
This cluster is hanging and finishing: sheets, compound, tape and fasteners. Interior paint coverage is a different trade page under Painting.
Formula-first tool library
Choose the right painting & drywall calculator.
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 calculatorCommon question
Does this select drywall type?
These are transparent planning aids, not engineering, code, installation or final supplier specifications. Confirm actual job requirements before construction.