
LFA Roofs Pro
Rafter & Truss 3D Calculator
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Free
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About
LFA Roofs Pro helps contractors, framers, carpenters, architects, and builders explore wood roof framing. Enter roof dimensions, inspect the structure in interactive 3D, and review measurements and material estimates.
KEY FEATURES
15 ROOF AND FRAMING MODES:
• Common Rafter
• Hip Roof
• Gable Roof
• Shed Roof
• Gambrel Roof
• Valley Roof
• Dormer Roof
• Octagonal Turret Roof
• Bay Roof
• Plywood Deck Layout
• Hip and Valley (L-Shape)
• Different Wall Heights
• Multi-Roof
• Roof Addition
• Wrap-Around Porch Roof
INTERACTIVE 3D AND 2D PLANS:
• Orbit the 3D model to inspect framing and roof layers.
• Review dimensioned 2D plans, elevations, and sections.
• See calculated rafter dimensions and cut information.
REPORTS AND EXPORT:
• Generate dimensioned PDF reports for project planning.
• Export 3D and CAD files in .OBJ, .DAE, and .DXF formats.
• Review lumber takeoffs, cut lists, and cost estimates.
BUILDING CODE REFERENCE:
• Calculations incorporate framing rules from the 2021 International Residential Code (IRC).
• Check local code requirements and have a qualified professional review structural details before construction or permit submission.
SUBSCRIPTION AND LEGAL INFORMATION:
• Premium access is available through monthly and annual auto-renewable subscriptions.
• Payment will be charged to your Apple Account at confirmation of purchase.
• Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period.
• Your account will be charged for renewal within 24 hours before the end of the current period.
• You can manage or cancel your subscription in your Apple Account settings.
Terms of Use (EULA):
https://lfa-legal.surge.sh/terms.html
Privacy Policy:
https://lfa-legal.surge.sh/privacy.html
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What's New in LFA Roofs Pro
2.0.0
October 12, 2026
2
Subscriptions & In-App Purchases
LFA Roofs Pro Monthly
Full access to all 15 3D/2D roof framing models.
$2.991 Month
7 Days trial








