What limestone thickness and finish are recommended for Organic Crazy Paving (Random Flagstone) Garden Pathways, Stepping Stones & Courtyards?

We recommend 20–30mm Calibrated or 25–35mm Natural Split Thickness in Natural Split / Tumbled Random Flagstone finish, achieving AS 4586 P5 / DIN 51130 R11–R12.

What substrate and adhesive system should be used for Organic Landscape Design?

Mortared over concrete slab with wide 15–30mm coarse sand-cement or polymer joints, or set as large 600–900mm stepping pads in gravel/dichondra lawn. Finish with Breathable penetrating sealer to prevent soil, leaf-tannin, and irrigation water staining.

Application Guide · RW-TYAPPL-0109 · Organic Landscape Design

Organic Crazy Paving (Random Flagstone) Garden Pathways, Stepping Stones & Courtyards

Pre-sorted random polygonal limestone flagstones (3–5 pieces per m²) for coastal Australian villas, Mediterranean gardens, and organic resort walkways.

1. Structural & Surface Specification Matrix

Engineering Parameter	Mandatory Architectural Specification
Application Category	Organic Landscape Design (RW-TYAPPL-0109)
Recommended Surface Finishes	Natural Split / Tumbled Random Flagstone
Calibrated Thickness & Profile	20–30mm Calibrated or 25–35mm Natural Split Thickness
Slip & Safety Compliance	AS 4586 P5 / DIN 51130 R11–R12
Substrate & Mortar Assembly	Mortared over concrete slab with wide 15–30mm coarse sand-cement or polymer joints, or set as large 600–900mm stepping pads in gravel/dichondra lawn.
Surface Sealing & Protection Protocol	Breathable penetrating sealer to prevent soil, leaf-tannin, and irrigation water staining.