About JoineryBench & Our Engineering Methodology

JoineryBench is an independent technical resource built for fine woodworkers, custom cabinetmakers, instrument builders, and campervan conversion craftsmen across the United States, the United Kingdom, Canada, and Australia.

How Our Joinery Formulas Are Verified

Every calculator on JoineryBench uses pure Euclidean chord geometry and trigonometric formulas rather than rough rules of thumb. Our tambour slat chord equations account for both router groove clearance and tenon thickness, while our Shoji and Kumiko calculators compute exact center-to-center table saw sled indexing pitches.

Dual US Imperial & UK Metric Support

Because workshop standards vary between North American fractional inch lumber and UK/European metric sheet goods, our tools and reference charts support both millimeter and inch workflows.