Rectangular fabric patch yield
Estimate the better of two uniform cutting orientations.
How it is calculated
Cut dimensions = finished dimensions + twice the edge margin. Test floor(fabric length ÷ cut length) × floor(fabric width ÷ cut width), then swap patch orientation.
Assumptions & limits
For ordinary fabric planning. Excludes defects, pattern direction and tool cutting loss. Mixed layouts might yield more; this is not for safety-critical equipment repair. Defaults are illustrative planning inputs, not recommended minimums or a guarantee of safety.
Planning estimates only. Defaults are illustrative, not personalized recommendations. Do not use these calculations as medical, structural, electrical installation or other safety certification. For informational and educational purposes only. CivArk is not medical, legal, engineering or other professional advice. Verify information with qualified professionals and current local authorities. Estimates and preparedness plans cannot guarantee safety or survival.