Smart Staircase Riser & Tread Calculator
Calculate perfect stair dimensions using Blondel's formula. 100% offline and secure.
🔒 100% Secure Local Execution
Staircase Planner
Select Unit:
Required Steps / Number of Risers:
-Exact Riser Height
-Ideal Tread Depth
-*Tread calculated via Blondel's Formula: 2 × Riser + Tread = 24.5"
Product Documentation & FAQ
How it Works
Smart Staircase Riser & Tread Calculator
100% Client-Side Sandbox Verified
Frequently Asked Questions
Everything you need to know about the technical implementation, security, and usage limits of this tool.
We use the French architect François Blondel's renowned ergonomic rule: 2R + T = 24-25 inches (where R is Riser and T is Tread). This guarantees the safest and most comfortable stair ascents.
Absolutely. 100% of the computation is executed locally inside your browser memory via client-side JavaScript. We guarantee zero data transmission to external servers.