Estimate sloped roof area from supplied plan dimensions and pitch. Add a separate row for each rectangular section.
Add the SlopeQuill Roof Area Estimator block or [roof_area_estimator] shortcode. Labelled keyboard controls, isolated repeat instances and a responsive layout inherit your site’s font and text colour. Download a plain-text summary or use Print summary. No account, API, analytics, cookies, lead capture or visitor-data storage. All inputs stay in the current page until you download them. The tool sends nothing to a provider.
Plan area is length × width. Sloped area is plan area ÷ cos(pitch). The allowance is applied once to the total sloped area. This rectangular approximation excludes complex shapes, overlaps, ridges and penetrations; it is not a material order, quote or structural assessment. Use dimensions and pitch from existing plans or a professional; no access to a roof is needed to use this tool.
Site-wide settings:
* Default area allowance (%): 10.
All functionality works without attribution.
Developed by Roofing Northern Beaches.
Screenshots
Rectangular plan dimensions, pitch and an editable area allowance. Desktop local frontend preview with example inputs.
Responsive mobile view of the same tool and example inputs in a local frontend preview.