专业楼梯计算器
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Frequently Asked Questions
Find answers to common questions about stair calculations and building codes.
Building Codes
What is the ideal riser height for residential stairs?
What is the minimum tread depth required?
What is headroom and why is it important?
Usage
Should I use imperial or metric units?
Can I use this calculator for outdoor stairs?
Can I export or print my calculations?
Design
What is the comfort formula (2R + T)?
What is tread thickness and why does it matter?
Measurement
How do I measure total height correctly?
Terminology
What is the difference between rise and run?
Troubleshooting
Why does my calculation show warnings?
Construction
How many stringers do I need?