Build Your First Tolerance Stack-Up

WC and RSS analysis, sensitivity charts, review-ready output. Pick a template or start from scratch.

Start with a Blank Stack-Up

Add your own dimensions, tolerances, and assumptions from scratch

Free — no account required

Or Start from a Template

Pre-built structures for common mechanical assemblies. Dimensions included—customize to your design.

🔧Hydraulics

Clevis/Actuator Gap

Calculate the gap between a clevis and actuator rod eyes. Common in hydraulic and pneumatic cylinder mounting.

⚙️Bearings

Shaft & Retainer Stack

Bearing preload/endplay stack with shaft shoulder, bearings, spacers, and retaining ring.

💧Sealing

Lid/Gasket Seal Stack

Gasket compression stack for a flanged lid assembly with bolt preload.

📐Fits

Pin/Bushing Clearance

Clearance fit analysis between a pin and bushing bore.

📋General

Generic Linear Chain

Blank 5-dimension linear stack template. Customize for your application.

Check out our guides to understand WC vs RSS analysis, sensitivity, and how to build review-ready reports.