Pricing

Free + Pro monthly or annual plans

Supports

Common, hip, valley, and gable workflows

Exports

PDF packets, cut lists, and material summaries

Storage

Local-first saved projects

Travel

Productivity

Free with in-app purchases

Roof Rafter: Framing Calc

Roof Rafter gives framers and contractors a roof-specific workspace for calculating rafter geometry, reviewing annotated 2D and 3D outputs, and turning field inputs into organized job packets without doing roof math by hand.

iOSDownload on theRoof Rafter: Framing CalcFree with in-app purchases · iOS 17.6 or laterOpen

View developer profile Browse all apps

iOS 17.6 or later7.3 MBVersion 1.0.0

Built for

The users and project contexts this app is designed to serve.

Framers working through common, hip, and valley roof calculations on site.

Roofers and contractors who need cut details, ridge layouts, and organized job references.

Owner-builders who want printable framing outputs without relying on a desktop workflow.

Why teams choose it

Shared advantages carried through the mobile workflow.

Built for roof framing instead of generic construction math.

Local-first project storage keeps jobs available on device in the field.

Supports both imperial and metric measurement workflows.

Core capabilities

The main workflow coverage called out in the App Store listing.

Calculate common rafters with run, rise, overhang, birdsmouth, and cut detail.

Lay out hip roofs with hip lengths, jack schedules, ridge layout, and framing outputs.

Solve valley geometry with intersecting roof angles and cut-planning details.

Create gable truss layouts with member lengths, spacing, and fabrication-ready references.

Review saved projects in annotated 2D diagrams and 3D previews.

Outputs and handoff

What users can review, package, and share after planning.

Printable PDF packets for field handoff and office review.

Cut lists and material summaries tied to saved projects.

Whole-roof workflow references, including takeoff and sheathing support where needed.

Free includes

What users get before upgrading.

Common Rafter calculator to get started quickly.

Core roof framing inputs and on-device project workflow.

Pro unlocks

What the paid tier adds for heavier day-to-day use.

Advanced roof builders for hip, valley, and gable truss workflows.

Expanded export workflows and higher project capacity for daily use.

Monthly: $5.99/month · Annual: $49.99/year

Privacy and workflow ownership

What the app listing says about data handling and local control.

App Store privacy details say the developer does not collect data from this app.

Projects are positioned as local-first and jobsite-friendly on device.

Fast input flow for framing dimensions while moving through real roof jobs.

Job-based project organization for returning to active or archived roof work.

Shareable, print-ready outputs for crews, office review, or client handoff.

Platform details

Reference details pulled from the current App Store listing.

Compatibility

iPhone, iPad, Mac with Apple silicon, and Apple Vision support via the App Store listing.

Bundle ID

com.zerothfloor.roofrafter

Released

March 19, 2026

Updated

March 20, 2026

Important notes

Roof Rafter Pro unlocks the advanced builders and expanded workflow depth.

Install Roof Rafter

Take the workflow to the field

Open the App Store listing for pricing, install, and version details, then keep the full product page close for capability and workflow context.

iOSInstall from theRoof Rafter: Framing Calc$5.99/month or $49.99/yearOpen

Quick install facts

Free with in-app purchases

iOS 17.6 or later

iPhone, iPad, Mac with Apple silicon, and Apple Vision support via the App Store listing.

Follow the full mobile lineup on the App Store

Keep track of the broader iPhone and iPad portfolio and move between roof, stair, and deck tools from the same developer profile.

Open developer page

Explore related apps

Move between the roof, stair, and deck workflows in the ZerothFloor mobile suite.

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Stairs 3D: Framing Calculator

Offline stair plans, 3D inspection, and shop-ready exports.

Stairs 3D is a field-ready stair framing calculator that solves stair geometry instantly, lets users inspect the result in 3D, and packages the outcome into blueprints, cut lists, PDFs, and CSVs without requiring an account or network connection.

Open app page

Decks 3D: Deck Builder

Framing-first deck plans, 3D review, and local build documents.

Decks 3D helps contractors, designers, and builders plan deck projects with deck-specific framing controls, live 2D and 3D review, material outputs, and on-device export workflows instead of relying on generic home design software.

Open app page