Units
Use a single project unit system where possible, then label each transferred value so mixed-unit work stays visible.
REFERENCE / PRELIMINARY ONLY
Method notes before the output.
Compact reference context for future tools. This page does not reproduce standards data or replace an adopted local code.
Fit scope
The limited selector supports four hole-basis fits from >0 through 180 mm. Every result shows its exact supported nominal range.
Guard and stair reminders
General dimensions are not adopted local code. Verify the adopted code, amendments, occupancy, materials, loading, and licensed-professional requirements before use.