Build a review-ready 1D stack-up in minutes
Worst-case and RSS on one page, with sensitivity and a PDF you can drop in a design review. Free to try — no spreadsheet.
Everything you need for tolerance analysis
Built by engineers, for engineers. No bloat, no learning curve—just the tools you need to do stack-ups right.
WC & RSS Analysis
Industry-standard worst-case and root-sum-of-squares methods. Know your stack behavior at a glance.
Sensitivity Analysis
Instantly see which dimensions drive your stack. Focus your tolerance budget where it matters.
Review-Ready PDFs
One-click export to a professional PDF report. Dimensions, results, assumptions—all documented.
Assumptions Checklist
Built-in checklist for your analysis assumptions. Never forget what you assumed.
Engineering Templates
Start from proven templates: clevis gaps, bearing stacks, gasket compression, and more.
Method Documentation
Clear notes on when to use WC vs RSS. Your reviewers will understand your choices.
Start from proven templates
Don't start from scratch. Pick a template that matches your application and customize it.
Clevis/Actuator Gap
Calculate the gap between a clevis and actuator rod eyes. Common in hydraulic and pneumatic cylinder mounting.
Shaft & Retainer Stack
Bearing preload/endplay stack with shaft shoulder, bearings, spacers, and retaining ring.
Thermal Expansion Stack
Stack-up including thermal expansion effects between dissimilar materials at operating temperature.
Generic Linear Chain
Blank 5-dimension linear stack template. Customize for your application.
Gear Mesh Center Distance
Center distance variation for spur/helical gear mesh affecting backlash and contact.
Shaft Coupling Alignment
Axial gap stack for flexible coupling between motor and driven shaft.
Simple, transparent pricing
Free = calculator + templates. Pro = unlimited stack-ups + review-ready PDFs.
Free
Calculator + templates for quick checks
- WC & RSS calculations
- Sensitivity analysis
- All engineering templates
- Up to 3 projects
- Up to 5 dimensions per stack
- Review-ready PDF export
- Unlimited projects & dimensions
Pro
Unlimited stack-ups + review-ready PDFs
- Unlimited projects
- Unlimited dimensions
- Review-ready PDF export
- WC & RSS calculations
- Sensitivity analysis
- All engineering templates
- Priority support
Questions? Email us at support@tolreport.com