X-Crew Tools guide
Deck Stair Stringers: Rise, Run and Full-Depth Geometry
Deck stairs become easier to reason about when the stringers are generated from the actual total rise and tread run.
Total rise drives riser count
The deck walking-surface height is divided into a practical riser count while respecting the configured maximum riser.
The deck is the upper landing
For a typical deck stair, the deck surface acts as the upper landing. That changes the relationship between riser count and the number of constructed treads.
Stringers need real depth
A stringer model should retain the full stock depth underneath the sawtooth cuts rather than turning into a thin triangular strip.
Posts need framing connections
Stair guard posts should be positioned relative to the outer stringer and the connection should be represented in the geometry and hardware list.
Use the model: DeckBuilder Pro connects these concepts to a 3D project and server-calculated material takeoff.