For the complete documentation index, see llms.txt. This page is also available as Markdown.
Opening Rules
Your guard (guardrail) must block certain sphere sizes through any opening:
Railing Infill
The space between posts (such as cables, rods, or panels) must block a 4-inch diameter sphere.
Stair Guard Infill
The space between posts on a stair guard (like a railing) must block a 4 3/8-inch sphere.
Stair triangle
The triangular gap formed by the tread, riser, and bottom element must block a 6-inch sphere.
Why Viewrail uses 3-1/8″ cable spacing (on center)
With correct tensioning, 3-1/8″ spacing helps ensure deflection does not allow a 4″ sphere to pass through.
