RollCut Metal Cut Calculator

RollCut Smart Engineering

In-app purchases

About this app

Calculate sheet metal cutting layouts and flat patterns for roofing, ventilation and workshop jobs. RollCut helps you plan parts on sheets or coils, check dimensions and prepare drawings for fabrication.

RECTANGULAR PARTS
Enter width, length and quantity. Compare cutting layouts, allow rotation and use Smart Layout. Calculate one rectangular part size in any quantity for free. PRO adds layouts with different part sizes.

SHAPED PARTS
Triangles, circles, rhombuses, trapezoids, parallelograms and honeycomb-shaped roofing parts, including raised shapes. Set the material dimensions, quantities and fold allowances, then compare layouts.

SHEET METAL FLAT PATTERNS
• Roof penetration
• Truncated cone
• Elbow development
• Rectangle → round
• Rectangle → round, offset
• Fence post cap
View dimensions, cut outlines and bend lines. Export drawings to PDF. Elbow patterns also support DXF export.

FREE CALCULATORS AND EXAMPLES
The BONUS section includes a triangle calculator and a radius calculator using chord length and sagitta. Use your own values without a subscription.
Try shaped parts and sheet metal tools with the built-in example values to see the results for free. Changed the inputs? Tap Restore example to return to the demo. PRO unlocks calculations with your own dimensions in these sections.

FROM MEASUREMENTS TO A CUTTING PLAN
Enter a parts list, paste data or recognize a list from an image and check the recognized values. Work in millimeters or feet and inches. Save projects, manage remnant stock and share PDF cutting plans.

Made by a tinsmith for practical metalworking. Designed for Android phones, tablets and dual-screen devices, with 41 interface language options.

PRO ACCESS
Monthly and yearly subscriptions unlock full access. Prices and terms are shown before purchase. Subscriptions renew automatically unless canceled. Manage or cancel your subscription in Google Play.

Check dimensions and fabrication allowances before cutting material.
Privacy: https://rollcut.app/privacy
Terms: https://rollcut.app/terms

What’s new

Improved OCR review: source text above a compact editor, selectable width/length order, row editing and deletion. Applying a list now scrolls to the added parts. Post-cap drawings and PDFs show clean triangle dimensions and clearer butterfly construction. Allowances and cutting outlines are separate; sheet layouts explain part rotation to reduce waste.