NOTCHRULE / A POCKET WORKBENCH
At the workbench.
Enter measurements
Inches accept decimals, fractions such as 23 5/8 and feet such as 8' 2". Metric entries are millimetres, including board length. Comma decimals are supported. Changing units converts valid measurements; fix invalid entries first. Displayed inch fractions round to 1/64, with ≈ marking rounded values.
Allow for the blade
Kerf is the material your saw removes. Trim per end is the total length removed from each stock end, including that end cut. The planner allows kerf between parts and after the last part up to the stock end. Marks are measured from the left end of the original stock. Cut on the waste side of the part. Verify lengths and actual blade kerf before use.
Understand the plan
The planner tries multiple deterministic arrangements. It reports a proven minimum only if the result meets a mathematical lower bound. Otherwise a smaller board count may exist. Straight 1D crosscuts only: no sheet layouts, mitres, grain, defects or structural calculations.
Keep a worksheet
Use Save worksheet and choose a file destination. Open file lets you reopen that JSON file and confirm replacing the current worksheet. Save PDF exports a paginated printable plan; Share text opens Android's sharing chooser. There is no project library. Save your worksheet before closing the task, force-stopping or uninstalling.
Spacing, lumber and fractions
Spacing can leave equal end gaps or place the first and last pieces flush with the span. Marks list left edges and centres from the span's left end. Lumber calculations use actual dimensions, not nominal lumber sizes: 1 board foot is 144 cubic inches. Waste allowance increases volume and estimated cost once. Enter price per board foot in a single currency; tax is excluded. The fraction calculator has no length unit and uses exact arithmetic.
File or calculation errors
Check lengths, nonzero dimensions, whole-number quantities and available stock. Files must use the supported Notchrule format and be at most 64 KB. If a provider loses access, choose the file or destination again. Cancelling a picker does not replace your worksheet.
Contact
Email Notchrule support. Include app version, Android version and the action that failed. Share project details only if you want to. Google Play handles paid-download orders and refund requests.
Google Play installation protection
Requires Android 7 or later. All calculation tools work offline. The Google Play version includes installation protection, and Play may occasionally require a connection to verify installation. Google handles paid-download purchases and these platform checks under its own privacy terms. Notchrule has no developer account or cloud service.