Wall Area Calculator

CONSTRUCTION ESTIMATOR

Wall Area Calculator

Calculate gross and net wall area after deducting openings.

Simple inputsUse your site measurements

Instant estimateCalculated in your browser

Clear workingSee how quantities are derived

Dimension input unit Applies to linear dimensions only. Area, volume, density and rate fields keep the units shown beside them.

Enter your project details

Enter dimensions and quantities. Check units before calculating.

Wall length (selected unit)

Wall height (selected unit)

Total doors / windows area (m²)

Number of faces to measure (faces)

Your result

Enter your details and select Calculate.

Formula and assumptions

Results are preliminary quantity estimates. Confirm dimensions, specifications, material properties and site conditions against approved drawings and supplier data.

Planning estimate only. This tool does not provide structural design, code approval or a substitute for advice from a qualified construction professional. Your entries are processed in your browser.