01

Model the floor plan

Create a mesh made of faces at the height of the walkway deck. Any shape works: L-shapes, openings, several separate decks and different levels. Sloped faces become ramps or, when marked, stairs.

02

Add the modifier

Drag Construction Walkway from the Asset Browser onto your mesh, or add a Geometry Nodes modifier and pick it. In the Supports panel choose a Ground object: the columns grow down until they hit it. Without one they stop at world height 0.

03

Mark open sides

In Edit Mode, select the edges that should stay open, like entrances or connections, and set Edge Crease to 1 (Shift + E). These edges get no railing, and the rails end cleanly before them.

04

Mark stairs

Select the edges of a sloped face and set Edge Bevel Weight to 1 (Edge menu or sidebar, Item tab). The face becomes a stair with grating treads. Stair Step Height sets the riser height; all steps come out equal.