Private Villa, Chongqing
A continuous floral runner ascending a curved staircase across twenty-four unique tread radii, culminating in a symmetrical reception floor composition.
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What this project had to solve
Floral inlay running up curved staircase treads — each tread a different radius.
Stone palette: Crema Marfil, Emperador Dark, Nero Portoro.
Private Villa, Chongqing in detail
This hillside residence required a sinuous floral runner ascending a helical staircase before unfolding into a symmetrical reception floor composition. Because the helical flight changed pitch and radius across twenty-four treads, no two step inserts shared identical geometry.
Rather than approximating the curve in segmented facets, our design team calculated each tread's mathematical radius directly from 3D laser scans, producing continuously variable vector cut paths for the waterjet.
Crema Marfil, Emperador Dark, and gold-veined Portoro were assembled with slip-resistant honed margins along the nosing line, while decorative field surfaces were hand-polished to match adjoining reception stone.
The entire helical sequence was dry-fitted on an indexed mock-up jig in our workshop, verifying that the central stem motif transitioned across each riser seam without angular disruption.
From drawing to crating
Full-size drawing
The pattern is drawn 1:1 on the atelier floor before any stone is cut, so proportions are settled at the scale you will walk on.
Stone selection
Blocks and slabs are chosen against the drawing, vein by vein, and photographed for your approval.
Waterjet cutting
Multi-axis waterjet cuts every piece direct from the approved CAD file, held to ±0.1mm across the whole figure.
Dry assembly & crating
The composition is assembled, inspected and numbered on the factory floor, then crated with a setting plan.