W228 B/D/E typical flight and landing rail/newel witnesses
Research representation: none. Architectural checks: pending.
Floor assignment pending · Original mark: B, D, E
45 recorded properties
Still to extract or check- Precisely classified rail-height witness endpoints
- Tube fraction, wall thickness and material specification
- Post spacing, member extents, connections and floor exceptions
- Full fine dimension chains and witness endpoint classes
- Source-to-building registration, slab openings and installed instances
- Companion details, revision authority and independent physical checks