Shim Stack Tolerance Tool2026

Shim Stack Calc is a practical utility for mechanical assembly, repair adjustment, and field measurement. Enter a target gap or target thickness, choose your common shim sizes, and calculate usable stack combinations locally on your device. The app shows thickness deviation, number of pieces, sorted results, and tolerance range hints, helping you compare options quickly when fitting shims, adjusting height, or calibrating gaps. Key features: - Enter target thickness or target gap - Build and edit a custom shim size library - Automatically calculate shim stack combinations - Sort results by deviation and piece count - View tolerance range and error hints - Manage material tags and stock quantities - Save favorite combinations and project records - Switch between millimeters and inches - Copy results with one tap All data stays on your device. No login is required, the app works offline, and it does not collect, upload, track, or share personal data.