Rafter Roof Calculator
Birdsmouth Pitch Angles
0 ratings
Archived App (Last seen on 5 Nov 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
Rating summary
About
Rafter Roof Calculator is a job-site tool for carpenters, framers, contractors, and serious DIYers who need accurate rafter and birdsmouth layout in imperial feet-inches-fractions.
• Full rafter geometry: total length, top length, rise, run, fall, setback, and tail/overhang along the rafter
• Birdsmouth layout: plumb depth or seat width modes, plus a safety warning when the notch is too deep
• Height Above Plate (HAP): instantly see remaining rafter depth over the wall plate
• Pitch & angle input: quick common pitch selector plus degree entry for custom roofs
• Secondary helper: calculate rafter run from building width and ridge thickness, then “Use This Value” in the main screen
• Interactive diagrams: scroll/pan views with grid and scale for the full rafter profile and a close-up birdsmouth detail
• PDF export: save/share a clean report with inputs, results, timestamp, and warnings
Built for speed and reliability: real-time updates (no Calculate button), offline operation, and privacy-friendly (no tracking).
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What's New in Rafter Roof Calculator
1.0
February 4, 2026
