Process Journal

Flagstone, Twice as Thick

A 1990s patio meets modern flagstone — same look, double the backbone.

Terrain · Summer 2025

An old patio extended in matching style — built on a foundation that’ll outlive the one beside it.

A Jackson Hole homeowner inherited a flagstone patio from the 1990s, built from 1-inch stone that’s thinner than anything available today. They wanted to remove the garden beds flanking the house and extend the patio in matching style. Lazar sourced contemporary 2-inch flagstone, graded the surface with a nearly imperceptible slope away from the house, and seamed the new patio into the old.

Before Built-in garden beds flanking the house and patio perimeter. The homeowner wanted those beds gone and the patio pushed out to match.
Before state of garden beds along the patio Close-up of the old beds to be removed
Foundation Road crush compacted under masonry sand, dialed to a gentle slope away from the house. The invisible half of any hardscape — get this wrong and the stones shift every freeze-thaw cycle.
Road-crush foundation compacted and graded
Grading Barely-perceptible pitch off the house. Enough for water to move. Not enough for furniture to wander.
Grading the base with a gentle slope Dialing in the surface before stone goes down
Stone Modern 2-inch flagstone set on top, joints filled with masonry sand to match the original look. Sprinkler heads under the new footprint got capped and re-routed.
Setting the first 2-inch flagstone pieces Stone going down along the house edge
Flagstone extension taking shape
The Result A seamless extension carrying a dining table and a lounge area in space the house didn’t really have before. Finished ahead of schedule.
Completed flagstone patio extension
Wide view of the extended flagstone patio Detail of the flagstone joints and edges
Patio in use after completion Another angle of the finished patio
“Matching 1-inch stone isn’t made anymore. The trick is sourcing 2-inch that reads the same, then building the base so the extension doesn’t give anything away.” — Vergiliu Lazar, General Manager, Terrain

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