Sheet metal field calculator
Round two-elbow offset.
Pin CUT JOINT to Lock Screen.
Measure offset S and two same-angle elbows. CutJoint shows axial run P, travel, and — when you fill allowance each end — cut joint in feet-inches. Last cut on Home & Lock Screen. $6.99 once. No account. No ads. Offline.
- Layout envelope, your allowance P = S / tan θ, travel = S / sin θ. Cut joint = travel − 2×allowance — only when you typed allowance. Not SMACNA certified. Verify fittings before you cut.
- Home & Lock Screen widgets Small, Medium, and Lock Screen rectangular. After Calculate, walk to the saw — CUT JOINT (or TRAVEL) stays on the glass. No Safari.
- Glove-ready ft-in Fraction keypad default 1/16″. θ presets 15 / 22.5 / 30 / 45 / 60 / 90. CLR 1.0 / 1.5 or custom throat. Spiral / round duct — not pipe trades.
App Store link coming soon. iOS 17+. Paid $6.99 buyout — no subscription.